Distribution of the Vrn-D1b allele associated with facultative growth habit in Chinese wheat accessions

doi:10.1007/s10681-015-1440-1

	Distribution of the Vrn-D1b allele associated with facultative growth habit in Chinese wheat accessions
	Guo, Xian-rui; Wang, Yuan-yuan; Meng, Ling-zhi; Liu, Hong-wei; Yang, Li; Zhou, Yang; Zhang, Hong-jun
刊名	EUPHYTICA
	2015
卷号	206 期号:1 页码:1-10
关键词	Triticum aestivum Vernalization response Facultative growth habit Vrn-D1b
ISSN号	0014-2336
DOI	10.1007/s10681-015-1440-1
通讯作者	Guo, Xian-rui
英文摘要	Vernalization requirement in wheat is determined by allelic variation mainly at three loci, Vrn-A1, Vrn-B1 and Vrn-D1. Up to 2011 only two alleles at the Vrn-D1 locus were known. The dominant allele, now designated as Vrn-D1a, confers spring growth habit, and the other, recessive allele, vrn-D1, is associated with the winter growth habit. Recently, we found an additional dominant allele, Vrn-D1b, associated with the facultative growth habit. As facultative wheat cultivars play an important role in wheat production we screened 689 accessions from all over China, with a specific aim of determining the frequency and distribution of Vrn-D1b. The results showed that Vrn-D1a, Vrn-D1b and vrn-D1 were present in 27.3, 20.6 and 52.1 % of all accessions, respectively. Vrn-D1a was mostly distributed in the autumn sown spring wheat zone, whereas Vrn-D1b was common in the autumn sown facultative wheat zone. One cultivar (Shiluan 02-1) was heterogeneous at the Vrn-D1 locus. A comparison between the Vrn-D1b genotype and the vrn-D1 genotype from the same cultivar showed that without vernalization the Vrn-D1b genotype reached the double ridge (DR) stage 27 days earlier than the vrn-D1 genotype. Vernalization responses, expressed as a reduction in the number of days to reach the DR stage following cold treatment, at 4 A degrees C for 20, 30 and 40 days, were 62, 67 and 75 days, respectively, for the Vrn-D1b genotype, and 74, 87 and 98 days, respectively, for the vrn-D1 genotype, confirming the effect of Vrn-D1b on facultative growth habit. Pedigree analysis indicates that the Vrn-D1b allele originated from Chinese landraces.
学科主题	Agronomy ; Plant Sciences ; Horticulture
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000362886100001
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4634]
专题	作物科学研究所_遗传育种系
作者单位	Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xian-rui,Wang, Yuan-yuan,Meng, Ling-zhi,et al. Distribution of the Vrn-D1b allele associated with facultative growth habit in Chinese wheat accessions[J]. EUPHYTICA,2015,206(1):1-10.
APA	Guo, Xian-rui.,Wang, Yuan-yuan.,Meng, Ling-zhi.,Liu, Hong-wei.,Yang, Li.,...&Zhang, Hong-jun.(2015).Distribution of the Vrn-D1b allele associated with facultative growth habit in Chinese wheat accessions.EUPHYTICA,206(1),1-10.
MLA	Guo, Xian-rui,et al."Distribution of the Vrn-D1b allele associated with facultative growth habit in Chinese wheat accessions".EUPHYTICA 206.1(2015):1-10.