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Marker-trait associations for spike-related characters in a doubled haploid population of wheat

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2012
1151.pdf (577.0Kb)
Authors
Trkulja, Dragana
Kondić-Špika, Ankica
Brbaklić, Ljiljana
Kobiljski, Borislav
Hristov, Nikola
Article (Published version)
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Abstract
Phenotypic assessment of yield and its component traits needs to be performed in replicated trials under multiple environments. Mapping populations such as doubled haploids (DHs) are suitable material for studying marker-trait associations, because they can be evaluated repeatedly in different years or in variable environments, thus having considerable potential for the identification of reliable quantitative trait loci. In the present study a DH mapping population, generated from the crossing of two hexaploid high yield potential wheat varieties, Savannah (UK) and Renesansa (SRB), was used to identify associations between five microsatellite markers and seven spike-related traits. Statistically significant associations were observed between marker GWM261 on 2DS chromosome and six spike-related traits: spike length, spikelet number per spike, sterile spikelet number per spike, grain weight, spike weight and spike index. The phenotypic variation explained by this marker was the highest ...for the trait spike length (from 8.3 to 24.7%).

Keywords:
breeding / microsatellites / QTL / Triticum aestivum / yield components
Source:
Romanian Agricultural Research, 2012, 29, 9-16
Funding / projects:
  • Modern breeding of small grains for present and future needs (RS-31066)

ISSN: 1222-4227

WoS: 000311919300002

Scopus: 2-s2.0-84883606681
[ Google Scholar ]
URI
http://fiver.ifvcns.rs/handle/123456789/1154
Collections
  • Radovi istraživača / Researchers' papers
Institution/Community
FiVeR
TY  - JOUR
AU  - Trkulja, Dragana
AU  - Kondić-Špika, Ankica
AU  - Brbaklić, Ljiljana
AU  - Kobiljski, Borislav
AU  - Hristov, Nikola
PY  - 2012
UR  - http://fiver.ifvcns.rs/handle/123456789/1154
AB  - Phenotypic assessment of yield and its component traits needs to be performed in replicated trials under multiple environments. Mapping populations such as doubled haploids (DHs) are suitable material for studying marker-trait associations, because they can be evaluated repeatedly in different years or in variable environments, thus having considerable potential for the identification of reliable quantitative trait loci. In the present study a DH mapping population, generated from the crossing of two hexaploid high yield potential wheat varieties, Savannah (UK) and Renesansa (SRB), was used to identify associations between five microsatellite markers and seven spike-related traits. Statistically significant associations were observed between marker GWM261 on 2DS chromosome and six spike-related traits: spike length, spikelet number per spike, sterile spikelet number per spike, grain weight, spike weight and spike index. The phenotypic variation explained by this marker was the highest for the trait spike length (from 8.3 to 24.7%).
T2  - Romanian Agricultural Research
T1  - Marker-trait associations for spike-related characters in a doubled haploid population of wheat
EP  - 16
IS  - 29
SP  - 9
UR  - conv_2997
ER  - 
@article{
author = "Trkulja, Dragana and Kondić-Špika, Ankica and Brbaklić, Ljiljana and Kobiljski, Borislav and Hristov, Nikola",
year = "2012",
abstract = "Phenotypic assessment of yield and its component traits needs to be performed in replicated trials under multiple environments. Mapping populations such as doubled haploids (DHs) are suitable material for studying marker-trait associations, because they can be evaluated repeatedly in different years or in variable environments, thus having considerable potential for the identification of reliable quantitative trait loci. In the present study a DH mapping population, generated from the crossing of two hexaploid high yield potential wheat varieties, Savannah (UK) and Renesansa (SRB), was used to identify associations between five microsatellite markers and seven spike-related traits. Statistically significant associations were observed between marker GWM261 on 2DS chromosome and six spike-related traits: spike length, spikelet number per spike, sterile spikelet number per spike, grain weight, spike weight and spike index. The phenotypic variation explained by this marker was the highest for the trait spike length (from 8.3 to 24.7%).",
journal = "Romanian Agricultural Research",
title = "Marker-trait associations for spike-related characters in a doubled haploid population of wheat",
pages = "16-9",
number = "29",
url = "conv_2997"
}
Trkulja, D., Kondić-Špika, A., Brbaklić, L., Kobiljski, B.,& Hristov, N.. (2012). Marker-trait associations for spike-related characters in a doubled haploid population of wheat. in Romanian Agricultural Research(29), 9-16.
conv_2997
Trkulja D, Kondić-Špika A, Brbaklić L, Kobiljski B, Hristov N. Marker-trait associations for spike-related characters in a doubled haploid population of wheat. in Romanian Agricultural Research. 2012;(29):9-16.
conv_2997 .
Trkulja, Dragana, Kondić-Špika, Ankica, Brbaklić, Ljiljana, Kobiljski, Borislav, Hristov, Nikola, "Marker-trait associations for spike-related characters in a doubled haploid population of wheat" in Romanian Agricultural Research, no. 29 (2012):9-16,
conv_2997 .

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