首页|Conditional QTL Mapping of Sedimentation Volume on Seven Quality Traits in Common Wheat

Conditional QTL Mapping of Sedimentation Volume on Seven Quality Traits in Common Wheat

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
  • 维普
To evaluate the possible genetic interrelationships between lfour components and the sedimentation volume (SD), a doubled haploid (DH) population comprising 168 lines were used to identify the conditional quantitative trait loci (QTLs) for SD in three environments. Ten additive QTLs and 15 pairs of epistatic QTLs were detected for SD through unconditional and conditional QTL mapping. Three major additive QTLs were detected for SD conditioned on the seven quality traits. Two additive QTLs were found to be independent of these traits. Three additive QTLs were suppressed by three of the seven traits because of non-detection in unconditional mapping.Three pairs of epistatic QTLs were completely affected by the seven traits because of detection in unconditional mapping but no-detection in conditional mapping. Twelve pairs of epistatic QTLs were detected in conditional mapping. Our results indicated that conditional mapping could contribute to a better understanding of the interdependence of different and closely correlated traits at the QTL molecular level, especially some minor QTLs were found. The conditional mapping approach provides new insights that will make it possible to avoid the disadvantages of different traits by breeding through molecular design.

wheat (Triticum aestivum L.)sedimentation volumeconditional QTL mapping

DENG Zhi-ying、ZHAO Liang、LIU Bin、ZHANG Kun-pu、CHEN Jian-sheng、QU Hou-lan、SUN Cai-ling、ZHANG Yong-xiang、TIAN Ji-chun

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State Key Laboratory of Crop Biology, Ministry of Science and Technology/Key Laboratory of Crop Biology of Shandong Province, Department of Agronomy/Group of Wheat Quality Breeding, Shandong Agricultural University, Tai’an 271018, P.R.China

research was supported by the Natural Science Foundation of Shandong Province, China国家自然科学基金国家自然科学基金National Major Projects of Cultivated Transgenic New Varieties Foundation of ChinaNational Major Projects of Cultivated Transgenic New Varieties Foundation of China

ZR2009DQ00930971764311715542011ZX08002-0032009ZX08002-017B

2013

10.1016/S2095-3119(13)60352-4

农业科学学报(英文)
中国农业科学院农业信息研究所

农业科学学报(英文)

CSCDSCI
影响因子：0.576
ISSN：2095-3119
年,卷(期)：2013.(12)
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