The detection of QTLs controlling bacterial wilt resistance in tobacco (N-tabacum L.)

doi:10.1007/s10681-012-0846-2

CORC > 中国农业科学院 > 作物科学研究所

	The detection of QTLs controlling bacterial wilt resistance in tobacco (N-tabacum L.)
	Qian, Yi-liang 1,2; Wang, Xin-sheng 3; Wang, Da-zhou 3; Zhang, Li-na ; Zu, Chao-long 2; Gao, Zheng-liang 2; Zhang, Hong-jun 3,4; Wang, Zhi-yong 5; Sun, Xue-yong 2; Yao, Da-nian 1
刊名	EUPHYTICA
	2013
卷号	192 期号:2 页码:259-266
关键词	Tobacco Bacterial wilt resistance Quantitative trait loci SSR
ISSN号	0014-2336
DOI	10.1007/s10681-012-0846-2
通讯作者	Qian, Yi-liang
英文摘要	The bacterial tobacco wilt caused by Ralstonia solanacearum is one of the most destructive soil-borne diseases worldwide. One strategy to improve the resistance to bacterial wilt is to make use of plant varieties expressing wilt resistance genes. To characterize the genetics of wilt resistance and to identify relevant molecular markers for use in plant breeding, quantitative trait loci (QTLs) affecting tobacco bacterial wilt resistance were mapped in the F-2:3 and F-2:4 progeny produced from two crosses between the wilt-resistant breeding lines Enshu and Yanyan97 and the susceptible cultivar TI448A. A linkage map containing 118 loci in 24 linkage groups was constructed for 236 lines from the EnshuxTI448A cross, and a linkage map containing 96 loci in 24 linkage groups was constructed for 264 lines from the Yanyan97xTI448A cross. The wilt resistance of the progeny was examined in field trials conducted in Xuancheng, China, in 2010, 2011, and 2012. The disease severity was assessed on stems using separate rating scales. Mapmaker/EXP 3.0 and Mapmaker/QTL 1.1 were used to identify the qBWR-3a, qBWR-3b, qBWR-5a and qBWR-5b QTLs in linkage group 3 and 5; these four loci were strongly associated with resistance and explain 9.00, 19.70, 17.30, and 17.40 % of the variance in resistance, respectively. The close linkage of the markers PT20275 and PT30229 was detected in both the TI448AxEnshu and TI448AxYanyan97 crosses, and this linkage group could be used to select individual resistant plants. These findings suggest that one strategy to combat bacterial wilt could be to exploit the resistance genes of the Enshu and Yanyan97 strains.
学科主题	Agronomy ; Plant Sciences ; Horticulture ; AGRONOMY ; HORTICULTURE ; PLANT SCIENCES
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000320578900009
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5032]
专题	作物科学研究所
作者单位	1.Anhui Agr Univ, Coll Agr, Hefei 230036, Peoples R China 2.Anhui Acad Agr Sci, Tobacco Res Inst, Hefei 230031, Peoples R China 3.China Natl Tobacco Corp, Anhui Prov Corp, Hefei 230022, Peoples R China 4.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China 5.Oklahoma State Univ, Stillwater, OK 74078 USA
推荐引用方式 GB/T 7714	Qian, Yi-liang,Wang, Xin-sheng,Wang, Da-zhou,et al. The detection of QTLs controlling bacterial wilt resistance in tobacco (N-tabacum L.)[J]. EUPHYTICA,2013,192(2):259-266.
APA	Qian, Yi-liang.,Wang, Xin-sheng.,Wang, Da-zhou.,Zhang, Li-na.,Zu, Chao-long.,...&Yao, Da-nian.(2013).The detection of QTLs controlling bacterial wilt resistance in tobacco (N-tabacum L.).EUPHYTICA,192(2),259-266.
MLA	Qian, Yi-liang,et al."The detection of QTLs controlling bacterial wilt resistance in tobacco (N-tabacum L.)".EUPHYTICA 192.2(2013):259-266.