HapIII of TaSAP1-A1, a Positively Selected Haplotype in Wheat Breeding

CORC > 中国农业科学院 > 作物科学研究所

	HapIII of TaSAP1-A1, a Positively Selected Haplotype in Wheat Breeding
	Chang Jianzhong; Hao Chenyang; Chang Xiaoping; Zhang Xueyong; Jing Ruilian
刊名	Journal of Integrative Agriculture
	2014
卷号	13 期号:7 页码:1462-1468
关键词	wheat (Triticum aestivum L.) TaSAP1-A1 HapIII frequency distribution thousand-grain weight grain yield improvement
ISSN号	2095-3119
英文摘要	Stress-associated protein (SAP) has functions in maintaining plant cell elongation, embryo development and response to abiotic stresses. TaSAP1-A1, one of the Triticum aestivum SAP1 (TaSAP1) members located on wheat chromosome 7A was isolated for polymorphism analysis. HapIII of TaSAP1-A1 was found significantly associated with thousand-grain weight (TGW) in multiple environments. In this study, HapIII also made a positive contribution to TGW in Population 2. The distribution of TaSAP1-A1 HapIII was tracked among varieties released in different years and geographical environments of China. The frequency of HapIII showed an increasing trend during the breeding process in two different populations. The HapIII was gradually selected and applied from 6.36% in landraces to 13.50% in modern varieties. These results exhibited that TaSAP1-A1 HapIII was positively selected during wheat breeding, which is beneficial for grain-yield improvement. The preferred HapIII was initially selected and applied in the higher latitude areas of China in accord with the long day season and longer grain filling stage in these areas. Moreover, the frequency of HapIII in recent modern varieties was still quite low (19.29-26.67%). It indicated a high application potential of TaSAP1-A1 HapIII for improving grain yield in wheat breeding.
学科主题	普通生物学 ; 遗传学
语种	中文
内容类型	期刊论文
源URL	[http://ir.nais.net.cn/handle/2HMLN22E/131273]
专题	作物科学研究所
作者单位	Institute of Crop Science, Chinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081
推荐引用方式 GB/T 7714	Chang Jianzhong,Hao Chenyang,Chang Xiaoping,et al. HapIII of TaSAP1-A1, a Positively Selected Haplotype in Wheat Breeding[J]. Journal of Integrative Agriculture,2014,13(7):1462-1468.
APA	Chang Jianzhong,Hao Chenyang,Chang Xiaoping,Zhang Xueyong,&Jing Ruilian.(2014).HapIII of TaSAP1-A1, a Positively Selected Haplotype in Wheat Breeding.Journal of Integrative Agriculture,13(7),1462-1468.
MLA	Chang Jianzhong,et al."HapIII of TaSAP1-A1, a Positively Selected Haplotype in Wheat Breeding".Journal of Integrative Agriculture 13.7(2014):1462-1468.