Genetic mapping of a fertile tiller inhibition gene, ftin, in wheat

doi:10.1007/s11032-012-9801-0

	Genetic mapping of a fertile tiller inhibition gene, ftin, in wheat
	Zhang, Jinpeng 1; Wu, Jun 2; Liu, Weihua 1; Lu, Xiang 3; Yang, Xinming 1; Gao, Ainong 1; Li, Xiuquan 1; Lu, Yuqing 1; Li, Lihui 1
刊名	MOLECULAR BREEDING
	2013
卷号	31 期号:2 页码:441-449
关键词	Wheat Fertile tiller inhibition Genetic analysis Mapping Agropyron cristatum
ISSN号	1380-3743
DOI	10.1007/s11032-012-9801-0
通讯作者	Zhang, Jinpeng
英文摘要	Increased fertile tiller number is a very important trait in high-yielding wheat (Triticum aestivum L.) lines. Uncovering the fundamental biological progress of fertile tiller formation would improve our understanding of the genetic nature of this trait and increase wheat yield. However, there is no suitable genetic material for studying the genetic mechanism of wheat fertile tiller formation. We report here the development of a fertile tiller inhibition line, Pubing3558, which was derived from a cross between common wheat and wild grass Agropyron cristatum. Pubing3558 possesses normal tillering ability in the seedling stage but reduced fertile tiller formation in the reproductive growth phase. A cross between Pubing3558 and the wheat cultivar Jing4841 with multiple fertile tillers was performed in order to map the fertile tiller inhibition gene (ftin). The F-1 population of the cross between Pubing3558 and Jing4841 showed a normal phenotype similar to that of the parent Jing4841. The F-2 population segregated with a 3:1 Mendelian ratio in 2-year replicates, which was further proven by the segregation ratio of the F-3 population. Genetic analysis uncovered that the fertile tiller inhibition trait in Pubing3558 is controlled by a single recessive gene. Using bulked segregant analysis methods, we located the ftin gene on wheat chromosome 1AS, which is linked closely to markers Xcfa2153 at a genetic distance of 1.0 cM. A combination of phenotype tests and genetic mapping demonstrated that the ftin gene is a newly identified gene in wheat. Overall, our results suggest that Pubing3558 will be valuable genetic source for studying the biological process of fertile tiller formation.
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:000314716700016
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5073]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	1.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China 2.NW A&F Univ, Coll Agron, Yangling 712100, Shannxi Provinc, Peoples R China 3.Gansu Agr Univ, Lanzhou 730030, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jinpeng,Wu, Jun,Liu, Weihua,et al. Genetic mapping of a fertile tiller inhibition gene, ftin, in wheat[J]. MOLECULAR BREEDING,2013,31(2):441-449.
APA	Zhang, Jinpeng.,Wu, Jun.,Liu, Weihua.,Lu, Xiang.,Yang, Xinming.,...&Li, Lihui.(2013).Genetic mapping of a fertile tiller inhibition gene, ftin, in wheat.MOLECULAR BREEDING,31(2),441-449.
MLA	Zhang, Jinpeng,et al."Genetic mapping of a fertile tiller inhibition gene, ftin, in wheat".MOLECULAR BREEDING 31.2(2013):441-449.