Efficacy of pyramiding elite alleles for dynamic development of plant height in common wheat

doi:10.1007/s11032-013-9873-5

	Efficacy of pyramiding elite alleles for dynamic development of plant height in common wheat
	Zhang, Bin 1,2; Shi, Wei 1,2; Li, Weiyu 1,2; Chang, Xiaoping 1,2; Jing, Ruilian 1,2
刊名	MOLECULAR BREEDING
	2013
卷号	32 期号:2 页码:327-338
关键词	Association mapping Development Elite allele Gene pyramiding Plant height Triticum aestivum
ISSN号	1380-3743
DOI	10.1007/s11032-013-9873-5
通讯作者	Zhang, Bin
英文摘要	Plant height is an important botanical feature closely related to yield. Two populations consisting of 118 and 262 accessions respectively were used to identify elite alleles for plant height and to validate their allelic effects. Plant height was measured from the early booting to the flowering stages. Simple sequence repeat markers for candidate quantitative trait locus (QTL) regions with large effects identified in a doubled haploid (DH) population (Hanxuan 10 x Lumai 14) were selected for further verification by association analysis. Nine loci significantly (P < 0.001) associated with plant height were detected 13 times in the population with 118 accessions. Three loci (Xgwm11-1B, Xwmc349-4B and Xcfd23-4D) were identified in three, two and two periods of plant height growth, respectively. Markers Xbarc168-2D, Xgwm249-2D, Xwmc349-4B, Xcfd23-4D and Xgwm410-5A located at or near additive QTL regions in the DH population proved to coincide with known Rht loci. The results showed a consistency between linkage analysis and association mapping, and also confirmed the value of fine mapping of QTL through combined linkage and association analyses. For final plant height, the alleles Xgwm11-1B (208) , Xwmc349-4B (103) and Xcfd23-4D (202) exhibited negative effects, i.e. reducing plant height; Xwmc349-4B (101) and Xcfd23-4D (205) showed significant positive effects. A second larger population (262 accessions) was used to validate the effects of these large-effect alleles and the efficacy of pyramiding in eight environments (year x site x water regime combinations). Strong correlations between final plant height and numbers of large-effect alleles indicated that the alleles contributed additively to plant height. The additive effects showed that pyramiding elite alleles for target traits has significant potential for wheat breeding.
学科主题	Agronomy ; Plant Sciences ; Genetics & Heredity ; Horticulture ; AGRONOMY ; GENETICS & HEREDITY ; HORTICULTURE ; PLANT SCIENCES
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000323501100008
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5020]
专题	作物科学研究所_分子生物学系
作者单位	1.Chinese Acad Agr Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China 2.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Bin,Shi, Wei,Li, Weiyu,et al. Efficacy of pyramiding elite alleles for dynamic development of plant height in common wheat[J]. MOLECULAR BREEDING,2013,32(2):327-338.
APA	Zhang, Bin,Shi, Wei,Li, Weiyu,Chang, Xiaoping,&Jing, Ruilian.(2013).Efficacy of pyramiding elite alleles for dynamic development of plant height in common wheat.MOLECULAR BREEDING,32(2),327-338.
MLA	Zhang, Bin,et al."Efficacy of pyramiding elite alleles for dynamic development of plant height in common wheat".MOLECULAR BREEDING 32.2(2013):327-338.