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

来源：

BREEDING SCIENCE | 2008年 / 58卷 / 04期

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

页码：453 / 460

页数：8

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