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Agronomic and molecular evaluation of maize inbred lines for drought tolerance

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2016
1581.pdf (1.358Mb)
Authors
Mikić, Sanja
Zorić, Miroslav
Stanisavljević, Dušan
Kondić-Špika, Ankica
Brbaklić, Ljiljana
Kobiljski, Borislav
Nastasić, Aleksandra
Mitrović, Bojan
Šurlan-Momirović, Gordana
Article (Published version)
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Abstract
Drought is a severe threat to maize yield stability in Serbia and other temperate Southeast European countries occurring occasionally but with significant yield losses. The development of resilient genotypes that perform well under drought is one of the main focuses of maize breeding programmes. To test the tolerance of newly developed elite maize inbred lines to drought stress, field trials for grain yield performance and anthesis silk interval (ASI) were set in drought stressed environments in 2011 and 2012. Inbred lines performing well under drought, clustered into a group with short ASI and a smaller group with long ASI, were considered as a potential source for tolerance. The former contained inbreds from different heterotic groups and with a proportion of local germplasm. The latter consisted of genotypes with mixed exotic and Lancaster germplasm, which performed better in more drought-affected environments. Three inbreds were selected for their potential drought tolerance, showi...ng an above-average yield and small ASI in all environments. Association analysis indicated significant correlations between ASI and grain yield and three microsatellites (bnlg1525, bnlg238 and umc1025). Eight alleles were selected for their favourable concurrent effect on yield increase and ASI decrease. The proportion of phenotypic variation explained by the markers varied across environments from 5.7% to 22.4% and from 4.6% to 8.1% for ASI and yield, respectively. The alleles with strongest effect on performance of particular genotypes and their interactions in specific environments were identified by the mean of partial least square interactions analysis indicating potential suitability of the makers for tolerant genotype selection.

Keywords:
anthesis silk interval / inbreds / microsatellites / yield / Zea mays
Source:
Spanish Journal of Agricultural Research, 2016, 14, 4
Publisher:
  • Spanish Natl Inst Agricultural & Food Research & Technolo, Madrid
Funding / projects:
  • Improvement of Maize and Sorghum Production Under Stress Conditions (RS-31073)

DOI: 10.5424/sjar/2016144-9116

ISSN: 1695-971X

WoS: 000389677200014

Scopus: 2-s2.0-85006043221
[ Google Scholar ]
4
3
URI
http://fiver.ifvcns.rs/handle/123456789/1584
Collections
  • Radovi istraživača / Researchers' papers
Institution/Community
FiVeR
TY  - JOUR
AU  - Mikić, Sanja
AU  - Zorić, Miroslav
AU  - Stanisavljević, Dušan
AU  - Kondić-Špika, Ankica
AU  - Brbaklić, Ljiljana
AU  - Kobiljski, Borislav
AU  - Nastasić, Aleksandra
AU  - Mitrović, Bojan
AU  - Šurlan-Momirović, Gordana
PY  - 2016
UR  - http://fiver.ifvcns.rs/handle/123456789/1584
AB  - Drought is a severe threat to maize yield stability in Serbia and other temperate Southeast European countries occurring occasionally but with significant yield losses. The development of resilient genotypes that perform well under drought is one of the main focuses of maize breeding programmes. To test the tolerance of newly developed elite maize inbred lines to drought stress, field trials for grain yield performance and anthesis silk interval (ASI) were set in drought stressed environments in 2011 and 2012. Inbred lines performing well under drought, clustered into a group with short ASI and a smaller group with long ASI, were considered as a potential source for tolerance. The former contained inbreds from different heterotic groups and with a proportion of local germplasm. The latter consisted of genotypes with mixed exotic and Lancaster germplasm, which performed better in more drought-affected environments. Three inbreds were selected for their potential drought tolerance, showing an above-average yield and small ASI in all environments. Association analysis indicated significant correlations between ASI and grain yield and three microsatellites (bnlg1525, bnlg238 and umc1025). Eight alleles were selected for their favourable concurrent effect on yield increase and ASI decrease. The proportion of phenotypic variation explained by the markers varied across environments from 5.7% to 22.4% and from 4.6% to 8.1% for ASI and yield, respectively. The alleles with strongest effect on performance of particular genotypes and their interactions in specific environments were identified by the mean of partial least square interactions analysis indicating potential suitability of the makers for tolerant genotype selection.
PB  - Spanish Natl Inst Agricultural & Food Research & Technolo, Madrid
T2  - Spanish Journal of Agricultural Research
T1  - Agronomic and molecular evaluation of maize inbred lines for drought tolerance
IS  - 4
VL  - 14
DO  - 10.5424/sjar/2016144-9116
UR  - conv_2541
ER  - 
@article{
author = "Mikić, Sanja and Zorić, Miroslav and Stanisavljević, Dušan and Kondić-Špika, Ankica and Brbaklić, Ljiljana and Kobiljski, Borislav and Nastasić, Aleksandra and Mitrović, Bojan and Šurlan-Momirović, Gordana",
year = "2016",
abstract = "Drought is a severe threat to maize yield stability in Serbia and other temperate Southeast European countries occurring occasionally but with significant yield losses. The development of resilient genotypes that perform well under drought is one of the main focuses of maize breeding programmes. To test the tolerance of newly developed elite maize inbred lines to drought stress, field trials for grain yield performance and anthesis silk interval (ASI) were set in drought stressed environments in 2011 and 2012. Inbred lines performing well under drought, clustered into a group with short ASI and a smaller group with long ASI, were considered as a potential source for tolerance. The former contained inbreds from different heterotic groups and with a proportion of local germplasm. The latter consisted of genotypes with mixed exotic and Lancaster germplasm, which performed better in more drought-affected environments. Three inbreds were selected for their potential drought tolerance, showing an above-average yield and small ASI in all environments. Association analysis indicated significant correlations between ASI and grain yield and three microsatellites (bnlg1525, bnlg238 and umc1025). Eight alleles were selected for their favourable concurrent effect on yield increase and ASI decrease. The proportion of phenotypic variation explained by the markers varied across environments from 5.7% to 22.4% and from 4.6% to 8.1% for ASI and yield, respectively. The alleles with strongest effect on performance of particular genotypes and their interactions in specific environments were identified by the mean of partial least square interactions analysis indicating potential suitability of the makers for tolerant genotype selection.",
publisher = "Spanish Natl Inst Agricultural & Food Research & Technolo, Madrid",
journal = "Spanish Journal of Agricultural Research",
title = "Agronomic and molecular evaluation of maize inbred lines for drought tolerance",
number = "4",
volume = "14",
doi = "10.5424/sjar/2016144-9116",
url = "conv_2541"
}
Mikić, S., Zorić, M., Stanisavljević, D., Kondić-Špika, A., Brbaklić, L., Kobiljski, B., Nastasić, A., Mitrović, B.,& Šurlan-Momirović, G.. (2016). Agronomic and molecular evaluation of maize inbred lines for drought tolerance. in Spanish Journal of Agricultural Research
Spanish Natl Inst Agricultural & Food Research & Technolo, Madrid., 14(4).
https://doi.org/10.5424/sjar/2016144-9116
conv_2541
Mikić S, Zorić M, Stanisavljević D, Kondić-Špika A, Brbaklić L, Kobiljski B, Nastasić A, Mitrović B, Šurlan-Momirović G. Agronomic and molecular evaluation of maize inbred lines for drought tolerance. in Spanish Journal of Agricultural Research. 2016;14(4).
doi:10.5424/sjar/2016144-9116
conv_2541 .
Mikić, Sanja, Zorić, Miroslav, Stanisavljević, Dušan, Kondić-Špika, Ankica, Brbaklić, Ljiljana, Kobiljski, Borislav, Nastasić, Aleksandra, Mitrović, Bojan, Šurlan-Momirović, Gordana, "Agronomic and molecular evaluation of maize inbred lines for drought tolerance" in Spanish Journal of Agricultural Research, 14, no. 4 (2016),
https://doi.org/10.5424/sjar/2016144-9116 .,
conv_2541 .

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