TY  - JOUR
AU  - Dodig, Dejan
AU  - Kandić, Vesna
AU  - Savić, Jasna
AU  - Vucelic-Radović, Bijana
AU  - Zorić, Miroslav
AU  - Popović, Aleksandra
AU  - Quarrie, Steve
PY  - 2016
UR  - http://rik.mrizp.rs/handle/123456789/648
AB  - When water stress develops post-anthesis, wheat (Triticum aestivum L.) plants have to rely increasingly on remobilization of previously stored assimilates to maintain grain filling. In two-year field trials, we studied more than 20 agronomic and developmental traits in 61 wheat genotypes (27 F4:5 families, 17 parents used for the crosses and 17 standards), comparing plants that were defoliated (DP) by cutting off all leaf blades 10 days after anthesis with intact control plants (CP). Estimated contributions of stem and sheath assimilate reserves to grain weight/spike were from 10-54% and from 24-84% in CP and DP plants, respectively. Stem-related traits were among key traits determining stem reserve contribution (SRC). The most important genetic variables in differentiating genotypes for stress tolerance were biomass/stem, stem reserves mobilization efficiency and grain filling rate (GFR). Balance among traits related to yield maintenance in DP were more important than their high values. In general F4: 5 families (FAM), that had been crossed to combine typical breeding traits such as biomass and yield components, showed better tolerance under moderate stress than standards and parents.
PB  - Cambridge Univ Press, New York
T2  - Experimental Agriculture
T1  - Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield
VL  - 52
IS  - 2
SP  - 203
EP  - 223
DO  - 10.1017/S0014479715000034
ER  - 

@article{
author = "Dodig, Dejan and Kandić, Vesna and Savić, Jasna and Vucelic-Radović, Bijana and Zorić, Miroslav and Popović, Aleksandra and Quarrie, Steve",
year = "2016",
abstract = "When water stress develops post-anthesis, wheat (Triticum aestivum L.) plants have to rely increasingly on remobilization of previously stored assimilates to maintain grain filling. In two-year field trials, we studied more than 20 agronomic and developmental traits in 61 wheat genotypes (27 F4:5 families, 17 parents used for the crosses and 17 standards), comparing plants that were defoliated (DP) by cutting off all leaf blades 10 days after anthesis with intact control plants (CP). Estimated contributions of stem and sheath assimilate reserves to grain weight/spike were from 10-54% and from 24-84% in CP and DP plants, respectively. Stem-related traits were among key traits determining stem reserve contribution (SRC). The most important genetic variables in differentiating genotypes for stress tolerance were biomass/stem, stem reserves mobilization efficiency and grain filling rate (GFR). Balance among traits related to yield maintenance in DP were more important than their high values. In general F4: 5 families (FAM), that had been crossed to combine typical breeding traits such as biomass and yield components, showed better tolerance under moderate stress than standards and parents.",
publisher = "Cambridge Univ Press, New York",
journal = "Experimental Agriculture",
title = "Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield",
volume = "52",
number = "2",
pages = "203-223",
doi = "10.1017/S0014479715000034"
}

Dodig, D., Kandić, V., Savić, J., Vucelic-Radović, B., Zorić, M., Popović, A.,& Quarrie, S.. (2016). Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield. in Experimental Agriculture
Cambridge Univ Press, New York., 52(2), 203-223.
https://doi.org/10.1017/S0014479715000034

Dodig D, Kandić V, Savić J, Vucelic-Radović B, Zorić M, Popović A, Quarrie S. Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield. in Experimental Agriculture. 2016;52(2):203-223.
doi:10.1017/S0014479715000034 .

Dodig, Dejan, Kandić, Vesna, Savić, Jasna, Vucelic-Radović, Bijana, Zorić, Miroslav, Popović, Aleksandra, Quarrie, Steve, "Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield" in Experimental Agriculture, 52, no. 2 (2016):203-223,
https://doi.org/10.1017/S0014479715000034 . .

TY  - JOUR
AU  - Dodig, Dejan
AU  - Kandić, Vesna
AU  - Quarrie, Steve
AU  - Barnes, Jeremy
AU  - Zorić, Miroslav
AU  - Kobiljski, Borislav
AU  - Savić, Jasna
PY  - 2012
UR  - http://rik.mrizp.rs/handle/123456789/417
AB  - Genetic analyses and association mapping were performed on a winter wheat core collection of 96 accessions sampled from a variety of geographic origins. Twenty-four agronomic traits were evaluated over 3 years under fully irrigated, rainfed and drought treatments. Grain yield was the most sensitive trait to water deficit and was highly correlated with above-ground biomass per plant and number of kernels per m(2). The germplasm was structured into four subpopulations. The association of 46 SSR loci distributed throughout the wheat genome with yield and agronomic traits was analyzed using a general linear model, where subpopulation information was used to control false-positive or spurious marker-trait associations (MTAs). A total of 26, 21 and 29 significant (P  lt  0.001) MTAs were identified in irrigated, rainfed and drought treatments, respectively. The marker effects ranged from 14.0 to 50.8%. Combined across all treatments, 34 significant (P  lt  0.001) MTAs were identified with nine markers, and R-2 ranged from 14.5 to 50.2%. Marker psp3200 (6DS) and particularly gwm484 (2DS) were associated with many significant MTAs in each treatment and explained the greatest proportion of phenotypic variation. Although we were not able to recognize any marker related to grain yield under drought stress, a number of MTAs associated with developmental and agronomic traits highly correlated with grain yield under drought were identified.
PB  - Mdpi Ag, Basel
T2  - International Journal of Molecular Sciences
T1  - Genetic and Association Mapping Study of Wheat Agronomic Traits Under Contrasting Water Regimes
VL  - 13
IS  - 5
SP  - 6167
EP  - 6188
DO  - 10.3390/ijms13056167
ER  - 

@article{
author = "Dodig, Dejan and Kandić, Vesna and Quarrie, Steve and Barnes, Jeremy and Zorić, Miroslav and Kobiljski, Borislav and Savić, Jasna",
year = "2012",
abstract = "Genetic analyses and association mapping were performed on a winter wheat core collection of 96 accessions sampled from a variety of geographic origins. Twenty-four agronomic traits were evaluated over 3 years under fully irrigated, rainfed and drought treatments. Grain yield was the most sensitive trait to water deficit and was highly correlated with above-ground biomass per plant and number of kernels per m(2). The germplasm was structured into four subpopulations. The association of 46 SSR loci distributed throughout the wheat genome with yield and agronomic traits was analyzed using a general linear model, where subpopulation information was used to control false-positive or spurious marker-trait associations (MTAs). A total of 26, 21 and 29 significant (P  lt  0.001) MTAs were identified in irrigated, rainfed and drought treatments, respectively. The marker effects ranged from 14.0 to 50.8%. Combined across all treatments, 34 significant (P  lt  0.001) MTAs were identified with nine markers, and R-2 ranged from 14.5 to 50.2%. Marker psp3200 (6DS) and particularly gwm484 (2DS) were associated with many significant MTAs in each treatment and explained the greatest proportion of phenotypic variation. Although we were not able to recognize any marker related to grain yield under drought stress, a number of MTAs associated with developmental and agronomic traits highly correlated with grain yield under drought were identified.",
publisher = "Mdpi Ag, Basel",
journal = "International Journal of Molecular Sciences",
title = "Genetic and Association Mapping Study of Wheat Agronomic Traits Under Contrasting Water Regimes",
volume = "13",
number = "5",
pages = "6167-6188",
doi = "10.3390/ijms13056167"
}

Dodig, D., Kandić, V., Quarrie, S., Barnes, J., Zorić, M., Kobiljski, B.,& Savić, J.. (2012). Genetic and Association Mapping Study of Wheat Agronomic Traits Under Contrasting Water Regimes. in International Journal of Molecular Sciences
Mdpi Ag, Basel., 13(5), 6167-6188.
https://doi.org/10.3390/ijms13056167

Dodig D, Kandić V, Quarrie S, Barnes J, Zorić M, Kobiljski B, Savić J. Genetic and Association Mapping Study of Wheat Agronomic Traits Under Contrasting Water Regimes. in International Journal of Molecular Sciences. 2012;13(5):6167-6188.
doi:10.3390/ijms13056167 .

Dodig, Dejan, Kandić, Vesna, Quarrie, Steve, Barnes, Jeremy, Zorić, Miroslav, Kobiljski, Borislav, Savić, Jasna, "Genetic and Association Mapping Study of Wheat Agronomic Traits Under Contrasting Water Regimes" in International Journal of Molecular Sciences, 13, no. 5 (2012):6167-6188,
https://doi.org/10.3390/ijms13056167 . .

TY  - JOUR
AU  - Zorić, Miroslav
AU  - Kobiljski, Borislav
AU  - Dodig, Dejan
AU  - Quarrie, Steve
AU  - Barnes, Jeremy
PY  - 2012
UR  - http://rik.mrizp.rs/handle/123456789/411
AB  - A set of 96 winter wheat accessions sampled from a variety of geographic origins, including cultivars and breeding lines, were characterized with 46 genome-wide SSR loci for genetic diversity and population structure. The genetic diversity within these accessions was examined using a genetic distance-based and a model-based clustering method. The model-based analysis identified an underlying population structure comprising of four distinct sub-populations which corresponded well with distance-based groupings. Information on the population structure is taken into account in an association mapping study of grain yield from a 3-years field trial incorporating fully irrigated, rainfed and drought stress treatments. A total of 21 marker-grain yield associations (P  lt  0.01) were identified with nine SSR markers. Most associations were detected only in one to three environments (treatment/year combination), with an average R (2) value around 13 %. However, marker gwm484 (on chromosome 2D) was associated with yield in six environments, including irrigated, rainfed and drought stress treatments, suggesting it could be used to improve grain yield across a range of environments. Variation in grain yield at this locus was associated with earliness, early vigour, kernels per spikelet and harvest index. Microsatellite locus psp3200 (on chromosome 6D) was associated with yield in dry and hot environments, which was related to earliness, early vigour, productive tillering and total biomass per plant. Partial least squares regression, with nine environmental factors, showed that precipitation from tillering to maturity was the main environmental factor causing marker x environment associations for grain yield.
PB  - Springer, Dordrecht
T2  - Genetica
T1  - Population structure in a wheat core collection and genomic loci associated with yield under contrasting environments
VL  - 140
IS  - 4-6
SP  - 259
EP  - 275
DO  - 10.1007/s10709-012-9677-2
ER  - 

@article{
author = "Zorić, Miroslav and Kobiljski, Borislav and Dodig, Dejan and Quarrie, Steve and Barnes, Jeremy",
year = "2012",
abstract = "A set of 96 winter wheat accessions sampled from a variety of geographic origins, including cultivars and breeding lines, were characterized with 46 genome-wide SSR loci for genetic diversity and population structure. The genetic diversity within these accessions was examined using a genetic distance-based and a model-based clustering method. The model-based analysis identified an underlying population structure comprising of four distinct sub-populations which corresponded well with distance-based groupings. Information on the population structure is taken into account in an association mapping study of grain yield from a 3-years field trial incorporating fully irrigated, rainfed and drought stress treatments. A total of 21 marker-grain yield associations (P  lt  0.01) were identified with nine SSR markers. Most associations were detected only in one to three environments (treatment/year combination), with an average R (2) value around 13 %. However, marker gwm484 (on chromosome 2D) was associated with yield in six environments, including irrigated, rainfed and drought stress treatments, suggesting it could be used to improve grain yield across a range of environments. Variation in grain yield at this locus was associated with earliness, early vigour, kernels per spikelet and harvest index. Microsatellite locus psp3200 (on chromosome 6D) was associated with yield in dry and hot environments, which was related to earliness, early vigour, productive tillering and total biomass per plant. Partial least squares regression, with nine environmental factors, showed that precipitation from tillering to maturity was the main environmental factor causing marker x environment associations for grain yield.",
publisher = "Springer, Dordrecht",
journal = "Genetica",
title = "Population structure in a wheat core collection and genomic loci associated with yield under contrasting environments",
volume = "140",
number = "4-6",
pages = "259-275",
doi = "10.1007/s10709-012-9677-2"
}

Zorić, M., Kobiljski, B., Dodig, D., Quarrie, S.,& Barnes, J.. (2012). Population structure in a wheat core collection and genomic loci associated with yield under contrasting environments. in Genetica
Springer, Dordrecht., 140(4-6), 259-275.
https://doi.org/10.1007/s10709-012-9677-2

Zorić M, Kobiljski B, Dodig D, Quarrie S, Barnes J. Population structure in a wheat core collection and genomic loci associated with yield under contrasting environments. in Genetica. 2012;140(4-6):259-275.
doi:10.1007/s10709-012-9677-2 .

Zorić, Miroslav, Kobiljski, Borislav, Dodig, Dejan, Quarrie, Steve, Barnes, Jeremy, "Population structure in a wheat core collection and genomic loci associated with yield under contrasting environments" in Genetica, 140, no. 4-6 (2012):259-275,
https://doi.org/10.1007/s10709-012-9677-2 . .

TY  - JOUR
AU  - Dodig, Dejan
AU  - Zorić, Miroslav
AU  - Kobiljski, Borislav
AU  - Quarrie, Steve
AU  - Quarrie, Steve
PY  - 2010
UR  - http://rik.mrizp.rs/handle/123456789/346
AB  - This study was conducted to assess drought tolerance and regional-based patterns of diversity of bread wheat accessions and to identify new sources of diversity that could accelerate the development of improved wheat varieties better suited to meeting the challenges posed by changing climate in Southern and Eastern Europe. For this, genetic diversity assessed by simple sequence repeats (SSR) markers was compared with diversity evaluated using 19 phenotypic traits averaged over irrigated and drought-stress field conditions. Thirty-six SSR were used to profile 96 wheat genotypes from the collection of genetic resources at the Institute of Field and Vegetable Crops, Novi Sad, Serbia. A total of 46 loci and 366 alleles were detected, with a range of 3-21 alleles per locus. The polymorphic information content was estimated to be 0.61. The genetic distance for all possible 4560 pairs of genotypes ranged from 0.06 to 0.91 with an average of 0.65. Genotypes were grouped according to their drought tolerance (high, medium, low) and region of origin. Analysis of molecular variance showed that over 96% of the total variation could be explained by the variance within the drought tolerance and geographical groups. As a whole, genetic diversity among the high drought tolerance genotypes was considerably higher than that among low drought tolerance genotypes. Comparative analysis of SSR diversity among six regional groups revealed that the genotypes from North America exhibited more genetic diversity than those from other regions. Two dendrograms were constructed based on phenotypic and molecular analyses using the Unweighted Pair Group Method with Arithmetic Mean method and were found to be topologically different. Genotypes characterised as highly drought tolerant were distributed among all SSR-based cluster groups. This implied that the genetic basis of drought tolerance in these genotypes was different, thereby enabling wheat breeders to combine these diverse sources of genetic variability to improve drought tolerance in their breeding programs.
PB  - Csiro Publishing, Collingwood
T2  - Crop & Pasture Science
T1  - Assessing drought tolerance and regional patterns of genetic diversity among spring and winter bread wheat using simple sequence repeats and phenotypic data
VL  - 61
IS  - 10
SP  - 812
EP  - 824
DO  - 10.1071/CP10001
ER  - 

@article{
author = "Dodig, Dejan and Zorić, Miroslav and Kobiljski, Borislav and Quarrie, Steve and Quarrie, Steve",
year = "2010",
abstract = "This study was conducted to assess drought tolerance and regional-based patterns of diversity of bread wheat accessions and to identify new sources of diversity that could accelerate the development of improved wheat varieties better suited to meeting the challenges posed by changing climate in Southern and Eastern Europe. For this, genetic diversity assessed by simple sequence repeats (SSR) markers was compared with diversity evaluated using 19 phenotypic traits averaged over irrigated and drought-stress field conditions. Thirty-six SSR were used to profile 96 wheat genotypes from the collection of genetic resources at the Institute of Field and Vegetable Crops, Novi Sad, Serbia. A total of 46 loci and 366 alleles were detected, with a range of 3-21 alleles per locus. The polymorphic information content was estimated to be 0.61. The genetic distance for all possible 4560 pairs of genotypes ranged from 0.06 to 0.91 with an average of 0.65. Genotypes were grouped according to their drought tolerance (high, medium, low) and region of origin. Analysis of molecular variance showed that over 96% of the total variation could be explained by the variance within the drought tolerance and geographical groups. As a whole, genetic diversity among the high drought tolerance genotypes was considerably higher than that among low drought tolerance genotypes. Comparative analysis of SSR diversity among six regional groups revealed that the genotypes from North America exhibited more genetic diversity than those from other regions. Two dendrograms were constructed based on phenotypic and molecular analyses using the Unweighted Pair Group Method with Arithmetic Mean method and were found to be topologically different. Genotypes characterised as highly drought tolerant were distributed among all SSR-based cluster groups. This implied that the genetic basis of drought tolerance in these genotypes was different, thereby enabling wheat breeders to combine these diverse sources of genetic variability to improve drought tolerance in their breeding programs.",
publisher = "Csiro Publishing, Collingwood",
journal = "Crop & Pasture Science",
title = "Assessing drought tolerance and regional patterns of genetic diversity among spring and winter bread wheat using simple sequence repeats and phenotypic data",
volume = "61",
number = "10",
pages = "812-824",
doi = "10.1071/CP10001"
}

Dodig, D., Zorić, M., Kobiljski, B., Quarrie, S.,& Quarrie, S.. (2010). Assessing drought tolerance and regional patterns of genetic diversity among spring and winter bread wheat using simple sequence repeats and phenotypic data. in Crop & Pasture Science
Csiro Publishing, Collingwood., 61(10), 812-824.
https://doi.org/10.1071/CP10001

Dodig D, Zorić M, Kobiljski B, Quarrie S, Quarrie S. Assessing drought tolerance and regional patterns of genetic diversity among spring and winter bread wheat using simple sequence repeats and phenotypic data. in Crop & Pasture Science. 2010;61(10):812-824.
doi:10.1071/CP10001 .

Dodig, Dejan, Zorić, Miroslav, Kobiljski, Borislav, Quarrie, Steve, Quarrie, Steve, "Assessing drought tolerance and regional patterns of genetic diversity among spring and winter bread wheat using simple sequence repeats and phenotypic data" in Crop & Pasture Science, 61, no. 10 (2010):812-824,
https://doi.org/10.1071/CP10001 . .

TY  - JOUR
AU  - Pekić, S.
AU  - Stikić, R.
AU  - Tomljanović, L.
AU  - Anđelković, Violeta
AU  - Ivanović, M.
AU  - Quarrie, Steve
PY  - 1995
UR  - http://rik.mrizp.rs/handle/123456789/3
AB  - The inbred maize lines Poljl7 and F-2 have previously been shown to differ by up to three-fold in leaf abscisic acid (ABA) concentration in the field. Lines from the cross Poljl7 × F-2 differing in leaf ABA concentrations, and the parents, were studied in the field to characterize the differences amongst the lines in ABA concentrations during the season, during the day and in different parts of the plants. The water status of the plants was measured and leaves were heat girdled to get information on possible causes for the genetic variation amongst the lines in ABA concentration. Leaf ABA concentrations of the high-AB A lines increased markedly and consistently from flowering time onwards, whereas leaf ABA concentrations of the low-ABA lines gradually fell after flowering. Leaf water potentials of high-ABA and low-ABA lines were similar during this time. Leaf ABA concentrations varied little during the day, and heat girdling caused a rise in ABA concentrations, which was similar in both high-ABA and low-ABA lines, only after girdling for at least 4 h. ABA concentrations were highest in the leaves and it was only in the leaves and developing kernels that substantial differences in ABA concentrations were found between the high-ABA and low-ABA classes. Although aerial brace roots also had high ABA concentrations, other roots and stem internodes had ABA concentrations which were consistently low and the same for both ABA classes. Differences between the ABA classes were unlikely to be due to differences in leaf water status or in ABA export from the leaves. Other possible explanations for the genotypic differences in leaf ABA concentrations are discussed.
T2  - Annals of Botany
T1  - Characterization of Maize lines differing in leaf abscisic acid content in the field. 1 abscisic acid physiology
VL  - 75
IS  - 1
SP  - 67
EP  - 73
DO  - 10.1016/S0305-7364(05)80010-1
ER  - 

@article{
author = "Pekić, S. and Stikić, R. and Tomljanović, L. and Anđelković, Violeta and Ivanović, M. and Quarrie, Steve",
year = "1995",
abstract = "The inbred maize lines Poljl7 and F-2 have previously been shown to differ by up to three-fold in leaf abscisic acid (ABA) concentration in the field. Lines from the cross Poljl7 × F-2 differing in leaf ABA concentrations, and the parents, were studied in the field to characterize the differences amongst the lines in ABA concentrations during the season, during the day and in different parts of the plants. The water status of the plants was measured and leaves were heat girdled to get information on possible causes for the genetic variation amongst the lines in ABA concentration. Leaf ABA concentrations of the high-AB A lines increased markedly and consistently from flowering time onwards, whereas leaf ABA concentrations of the low-ABA lines gradually fell after flowering. Leaf water potentials of high-ABA and low-ABA lines were similar during this time. Leaf ABA concentrations varied little during the day, and heat girdling caused a rise in ABA concentrations, which was similar in both high-ABA and low-ABA lines, only after girdling for at least 4 h. ABA concentrations were highest in the leaves and it was only in the leaves and developing kernels that substantial differences in ABA concentrations were found between the high-ABA and low-ABA classes. Although aerial brace roots also had high ABA concentrations, other roots and stem internodes had ABA concentrations which were consistently low and the same for both ABA classes. Differences between the ABA classes were unlikely to be due to differences in leaf water status or in ABA export from the leaves. Other possible explanations for the genotypic differences in leaf ABA concentrations are discussed.",
journal = "Annals of Botany",
title = "Characterization of Maize lines differing in leaf abscisic acid content in the field. 1 abscisic acid physiology",
volume = "75",
number = "1",
pages = "67-73",
doi = "10.1016/S0305-7364(05)80010-1"
}

Pekić, S., Stikić, R., Tomljanović, L., Anđelković, V., Ivanović, M.,& Quarrie, S.. (1995). Characterization of Maize lines differing in leaf abscisic acid content in the field. 1 abscisic acid physiology. in Annals of Botany, 75(1), 67-73.
https://doi.org/10.1016/S0305-7364(05)80010-1

Pekić S, Stikić R, Tomljanović L, Anđelković V, Ivanović M, Quarrie S. Characterization of Maize lines differing in leaf abscisic acid content in the field. 1 abscisic acid physiology. in Annals of Botany. 1995;75(1):67-73.
doi:10.1016/S0305-7364(05)80010-1 .

Pekić, S., Stikić, R., Tomljanović, L., Anđelković, Violeta, Ivanović, M., Quarrie, Steve, "Characterization of Maize lines differing in leaf abscisic acid content in the field. 1 abscisic acid physiology" in Annals of Botany, 75, no. 1 (1995):67-73,
https://doi.org/10.1016/S0305-7364(05)80010-1 . .