Effects of the Vrn-D1b allele associated with facultative growth habit on agronomic traits in common wheat

doi:10.1007/s10681-016-1747-6

	Effects of the Vrn-D1b allele associated with facultative growth habit on agronomic traits in common wheat
	Meng, Ling-zhi 1; Liu, Hong-wei 1; Yang, Li 1; Mai, Chun-yan 2; Yu, Li-qiang 3; Li, Hong-jie 1; Zhang, Hong-jun 1; Zhou, Yang 1
刊名	EUPHYTICA
	2016
卷号	211 期号:1 页码:113-122
关键词	Triticum aestivum L. Agronomic traits Facultative growth habit Vrn-D1b
ISSN号	0014-2336
DOI	10.1007/s10681-016-1747-6
通讯作者	Meng, Ling-zhi
英文摘要	The Vrn-D1b allele associated with facultative growth habit was recently found in the wheat cultivars mostly distributed in the Yellow and Huai River Valley Winter Wheat Zone (YHWZ) in China. The objective of the present study was to understand the effects of Vrn-D1b on agronomic traits. A population of F-3:8 derived lines, having the same allelic variation at all known vernalization loci except Vrn-D1 and photoperiod loci, was developed, from which 50 lines with homozygous Vrn-D1b genotype and 50 lines with homozygous vrn-D1 genotype were evaluated in two environments. The results showed that the Vrn-D1b-carrying lines had significantly higher grain yield (0.3 t ha(-1), P aecurrency sign 0.01), more kernels per spike (1.2, P aecurrency sign 0.01), greater thousand kernel weight (0.8 g, P aecurrency sign 0.05), higher seedling height (2.5 cm, P aecurrency sign 0.01) and plant height (2.0 cm, P aecurrency sign 0.01), fewer sterile spikelet number per spike (-0.3, P aecurrency sign 0.01), earlier in both heading (1.0 days, P aecurrency sign 0.01) and anthesis (1.0 days, P aecurrency sign 0.01), compared to the vrn-D1-carrying lines. Grain yield was positively correlated with seedling height (r = 0.47, P aecurrency sign 0.01), plant height (r = 0.37, P aecurrency sign 0.01) and kernel number per spike (r = 0.51, P aecurrency sign 0.01), but negatively correlated with the heading date (r = -0.50, P aecurrency sign 0.01) and anthesis date (r = -0.55, P aecurrency sign 0.01). Path analysis and clustering analysis based on the principal component analysis showed that the yield advantage of Vrn-D1b lines over vrn-D1 lines was attributed primarily to the increased kernel number per spike. The findings indicate that the Vrn-D1b allele had a direct or indirect effect on grain yield.
学科主题	Horticulture
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000383128700010
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/105323]
专题	作物科学研究所_遗传育种系
作者单位	1.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China 2.Natl Ctr Technol Innovat Dwarf Male Sterile Wheat, Xinxiang 453731, Peoples R China 3.Zhaoxian Inst Agr Sci, Zhaoxian 515300, Peoples R China
推荐引用方式 GB/T 7714	Meng, Ling-zhi,Liu, Hong-wei,Yang, Li,et al. Effects of the Vrn-D1b allele associated with facultative growth habit on agronomic traits in common wheat[J]. EUPHYTICA,2016,211(1):113-122.
APA	Meng, Ling-zhi.,Liu, Hong-wei.,Yang, Li.,Mai, Chun-yan.,Yu, Li-qiang.,...&Zhou, Yang.(2016).Effects of the Vrn-D1b allele associated with facultative growth habit on agronomic traits in common wheat.EUPHYTICA,211(1),113-122.
MLA	Meng, Ling-zhi,et al."Effects of the Vrn-D1b allele associated with facultative growth habit on agronomic traits in common wheat".EUPHYTICA 211.1(2016):113-122.