Identification of QTLs for stay green trait in wheat (Triticum aestivum L.) in the ‘Chirya 3’ × ‘Sonalika’ population

被引：0
|
作者：
Uttam Kumar
Arun K. Joshi
Maya Kumari
Rajneesh Paliwal
Sundeep Kumar
Marion S. Röder
机构：
[1] Leibniz Institute of Plant Genetics and Crop Plant Research (IPK),Department of Genetics and Plant Breeding
[2] The Energy and Resources Institute,Department of Molecular Biology and Genetic Engineering
[3] Institute of Agricultural Sciences,undefined
[4] Banaras Hindu University,undefined
[5] CIMMYT,undefined
[6] South Asia Regional Office,undefined
[7] Defence Research and Development Organisation (DRDO),undefined
[8] Defence Institute of Bio-Energy Research,undefined
[9] Sardar Vallabh Bhai Patel University of Agriculture and Technology,undefined
[10] NRC on Finger Printing,undefined
[11] NBPGR,undefined
来源：
Euphytica | 2010年 / 174卷
关键词：
Stay green; QTLs; Wheat; Microsatellite markers; RILs; Deletion bin;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Stay green or delayed senescence is considered to play a crucial role in grain development in wheat when assimilates are limited. We identified three QTLs for stay green on the chromosomes 1AS, 3BS and 7DS using a recombinant inbred (RI) population developed by making crosses between the stay green parent ‘Chirya 3’ and non-stay green ‘Sonalika’. The RI lines were evaluated in natural field conditions for 2 years in replicated trial. The QTL on chromosome 1A was identified in both the years, while the QTLs on 3BS and 7DS were identified only in 1st and 2nd year, respectively. The QTLs explained up to 38.7% of phenotypic variation in a final simultaneous fit. The alleles for higher stay green values derived from the stay green parent ‘Chirya 3’. The QTLs were named as QSg.bhu-1A, QSg.bhu-3B and QSg.bhu-7D. The QTL QSg.bhu-3B and QSg.bhu-7D were placed in the 3BS9-0.57-0.78 and 7DS5-0.36-0.61 deletion bins, respectively.
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页码：437 / 445
页数：8
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