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Relationship between genetic diversity and cold-tolerance of maize inbred lines

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2017
690.pdf (432.9Kb)
Authors
Milivojević, Marija
Nikolić, Ana
Marković, Ksenija
Filipović, Milomir
Vančetović, Jelena
Petrović, Tanja
Srdić, Jelena
Article (Published version)
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Abstract
Early maize sowing enables longer growing season with enhanced possibility of achieving higher and more stable yields, and better chances of avoiding summer droughts. For early sowing, cold-tolerant maize genotypes should be used. Breeding maize, tolerant to low temperatures, requires knowledge of genetic diversity and heterotic patterns of breeding material. The objective of this study was to determine genetic diversity of 15 ZP maize inbred lines applying the method of protein markers (UTLIEF method), and to establish correspondence between thus obtained classification with the results of cold test (CT) and field emergence (FE). During two production seasons (2011 and 2014), 15 maize inbred lines were self-pollinated. Pedigree data showed that material belongs to different maturity and heterotic groups. Cold tolerance was assessed in laboratory (2015) by cold test (7.5 degrees C, 10 days), and field trials on two locations during two successive years (2015, 2016). ZP maize inbred lin...es showed very good response to stressful conditions of CT and FE. Inbred lines with Lancaster background were more sensitive to low temperatures than inbred lines with BSSS and Iowa Dent background. Based on UTLIEF method two inbred lines with Lancaster background (ZPL 5 and ZPL 7) were grouped by cluster analysis together with Iowa Dent inbred lines, that also expressed better cold tolerance, and thus exceptional consent was achieved with the results of CT and FE. Classification of maize inbred lines based on UTLIEF method, followed by cluster analysis and PCA, showed good agreement with pedigree data, which points out that this method could be successfully applied for genetic classification of breeding material of a wide genetic background.

Keywords:
maize / cold-tolerance / genetic diversity / UTLIEF
Source:
Genetika, 2017, 49, 2, 635-646
Publisher:
  • Društvo genetičara Srbije, Beograd

DOI: 10.2298/GENSR1702635M

ISSN: 0534-0012

WoS: 000418533000021

Scopus: 2-s2.0-85033590480
[ Google Scholar ]
2
2
URI
http://rik.mrizp.rs/handle/123456789/692
Collections
  • Радови истраживача / Researchers' publications
Institution/Community
MRIZP
TY  - JOUR
AU  - Milivojević, Marija
AU  - Nikolić, Ana
AU  - Marković, Ksenija
AU  - Filipović, Milomir
AU  - Vančetović, Jelena
AU  - Petrović, Tanja
AU  - Srdić, Jelena
PY  - 2017
UR  - http://rik.mrizp.rs/handle/123456789/692
AB  - Early maize sowing enables longer growing season with enhanced possibility of achieving higher and more stable yields, and better chances of avoiding summer droughts. For early sowing, cold-tolerant maize genotypes should be used. Breeding maize, tolerant to low temperatures, requires knowledge of genetic diversity and heterotic patterns of breeding material. The objective of this study was to determine genetic diversity of 15 ZP maize inbred lines applying the method of protein markers (UTLIEF method), and to establish correspondence between thus obtained classification with the results of cold test (CT) and field emergence (FE). During two production seasons (2011 and 2014), 15 maize inbred lines were self-pollinated. Pedigree data showed that material belongs to different maturity and heterotic groups. Cold tolerance was assessed in laboratory (2015) by cold test (7.5 degrees C, 10 days), and field trials on two locations during two successive years (2015, 2016). ZP maize inbred lines showed very good response to stressful conditions of CT and FE. Inbred lines with Lancaster background were more sensitive to low temperatures than inbred lines with BSSS and Iowa Dent background. Based on UTLIEF method two inbred lines with Lancaster background (ZPL 5 and ZPL 7) were grouped by cluster analysis together with Iowa Dent inbred lines, that also expressed better cold tolerance, and thus exceptional consent was achieved with the results of CT and FE. Classification of maize inbred lines based on UTLIEF method, followed by cluster analysis and PCA, showed good agreement with pedigree data, which points out that this method could be successfully applied for genetic classification of breeding material of a wide genetic background.
PB  - Društvo genetičara Srbije, Beograd
T2  - Genetika
T1  - Relationship between genetic diversity and cold-tolerance of maize inbred lines
VL  - 49
IS  - 2
SP  - 635
EP  - 646
DO  - 10.2298/GENSR1702635M
UR  - conv_964
ER  - 
@article{
author = "Milivojević, Marija and Nikolić, Ana and Marković, Ksenija and Filipović, Milomir and Vančetović, Jelena and Petrović, Tanja and Srdić, Jelena",
year = "2017",
abstract = "Early maize sowing enables longer growing season with enhanced possibility of achieving higher and more stable yields, and better chances of avoiding summer droughts. For early sowing, cold-tolerant maize genotypes should be used. Breeding maize, tolerant to low temperatures, requires knowledge of genetic diversity and heterotic patterns of breeding material. The objective of this study was to determine genetic diversity of 15 ZP maize inbred lines applying the method of protein markers (UTLIEF method), and to establish correspondence between thus obtained classification with the results of cold test (CT) and field emergence (FE). During two production seasons (2011 and 2014), 15 maize inbred lines were self-pollinated. Pedigree data showed that material belongs to different maturity and heterotic groups. Cold tolerance was assessed in laboratory (2015) by cold test (7.5 degrees C, 10 days), and field trials on two locations during two successive years (2015, 2016). ZP maize inbred lines showed very good response to stressful conditions of CT and FE. Inbred lines with Lancaster background were more sensitive to low temperatures than inbred lines with BSSS and Iowa Dent background. Based on UTLIEF method two inbred lines with Lancaster background (ZPL 5 and ZPL 7) were grouped by cluster analysis together with Iowa Dent inbred lines, that also expressed better cold tolerance, and thus exceptional consent was achieved with the results of CT and FE. Classification of maize inbred lines based on UTLIEF method, followed by cluster analysis and PCA, showed good agreement with pedigree data, which points out that this method could be successfully applied for genetic classification of breeding material of a wide genetic background.",
publisher = "Društvo genetičara Srbije, Beograd",
journal = "Genetika",
title = "Relationship between genetic diversity and cold-tolerance of maize inbred lines",
volume = "49",
number = "2",
pages = "635-646",
doi = "10.2298/GENSR1702635M",
url = "conv_964"
}
Milivojević, M., Nikolić, A., Marković, K., Filipović, M., Vančetović, J., Petrović, T.,& Srdić, J.. (2017). Relationship between genetic diversity and cold-tolerance of maize inbred lines. in Genetika
Društvo genetičara Srbije, Beograd., 49(2), 635-646.
https://doi.org/10.2298/GENSR1702635M
conv_964
Milivojević M, Nikolić A, Marković K, Filipović M, Vančetović J, Petrović T, Srdić J. Relationship between genetic diversity and cold-tolerance of maize inbred lines. in Genetika. 2017;49(2):635-646.
doi:10.2298/GENSR1702635M
conv_964 .
Milivojević, Marija, Nikolić, Ana, Marković, Ksenija, Filipović, Milomir, Vančetović, Jelena, Petrović, Tanja, Srdić, Jelena, "Relationship between genetic diversity and cold-tolerance of maize inbred lines" in Genetika, 49, no. 2 (2017):635-646,
https://doi.org/10.2298/GENSR1702635M .,
conv_964 .

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