Detecting QTLs for plant architecture traits in cucumber (Cucumis sativus L.)

被引:9
作者
Li, Xiao Zun [1 ]
Yuan, Xiao Jun [1 ]
Jiang, Su [1 ]
Pan, Jun Song [1 ]
Deng, Si Li [1 ]
Wang, Gang [1 ]
Le He, Huan [1 ]
Wu, Ai Zhong [1 ]
Zhu, Li Huang [2 ]
Koba, Takato [3 ]
Cai, Run [1 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China
[2] Chinese Acad Sci, Inst Genet & Dev Biol, Beijing 100101, Peoples R China
[3] Chiba Univ, Grad Sch Hort, Lab Genet & Plant Breeding, Chiba 2718510, Japan
关键词
cucumber; QTL; molecular marker; linkage map; plant architecture; marker-assisted selection;
D O I
10.1270/jsbbs.58.453
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
To improve the efficiency of breeding Cucumber ill China, we previously mapped QTL for most fruit- and flower-related traits of this species. Here, we mapped QTLs for six plant architecture traits including lateral branch number (LBN), lateral branch total length (LBTL), main-stern length (MSL), internode length (TNL), main-stem diameter (MSD), and petiole length (PL) were detected in greenhouse environments. In total, 14 QTLs were identified for the six traits (LBN, 3; LBTL, 2; MSL, 3; INL, 2; MSD, 2; and PL, 2) with additive heritability of individual QTL, ranging from 1.6% to 29.5%. Five QTLs for four traits (LBN, LBTL, MSL, and INL) were observed to have significant (P <= 0.05) QTL x environment interaction effects. The broad-sense heritability for the six traits ranged from 8.5% to 47.0%. The QTL information presented in this research, together with the data in Our previous study on the fruit- and flower-related traits, will facilitate the breeding of elite cucumber cultivars by marker-assisted selection in China.
引用
收藏
页码:453 / 460
页数:8
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