《植物生理学报》 2011, 47(4): 363-366

荔枝若干重要果实品质性状的QTL分析

赵玉辉^1,2, 郭印山^2,*, 黄穗生¹, 傅嘉欣¹, 胡桂兵¹, 张永福¹, 胡又厘¹, 刘成明^1,*

1华南农业大学园艺学院, 广州510642; 2沈阳农业大学园艺学院, 沈阳110866

通信作者：郭印山；E-mail: cmliu@scau.edu.cn, guoyinshan77@126.com；Tel: 020-85288276

摘　要：

以 ‘马贵荔’ב焦核三月红’76株F1代群体为试材, 检测了酒石酸、苹果酸、蔗糖含量和单果重4个果实性状分离的情 况。结果表明, 4个性状表现为连续分布, 具有数量性状的典型特征, 与4个果实性状连锁的QTL位点23个, 其中控制酒石酸 的QTL为2个,控制苹果酸的QTL为4个, 控制蔗糖的QTL为12个和控制单果重的QTL为5个。各QTL的LOD值在3.15~5.61之 间, 可解释13.85%~88.3%的表型变异。

关键词：荔枝; QTL分析; 果实性状

收稿：2010-11-26   修定：2011-02-28

资助：国家自然科学基金项目(30270922和30771498)、国家自然科 学基金国际(地区)合作交流项目(30510103125)、国家支撑 计划子课题(2006BAD01A1705)、中国博士后科学基金项目(20070410837)、广东省国际合作项目(2009B050300004)、 广东省科技计划项目(2009B020200010)、华南农业大学国 际合作交流基金项目(2007K055)和现代农业产业技术体系建设专项(nycytx-32)。

QTL Analysis of Several Important Fruit Quality Traits in Litchi (Litchi chinensis Sonn.)

ZHAO Yu-Hui^1,2, GUO Yin-Shan^2,*, HUANG Sui-Sheng¹, FU Jia-Xin¹, HU Gui-Bin¹, ZHANG Yong-Fu¹, HU You-Li¹, LIU Cheng-Ming^1,*

¹College of Horticulture, South China Agricultural University, Guangzhou 510642, China; ²College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China

Corresponding author: GUO Yin-Shan; E-mail: cmliu@scau.edu.cn, guoyinshan77@126.com; Tel: 020-85288276

Abstract:

The four traits of fruit in litchi (Litchi chinensis), include tartaric content, malic acid content, sucrose content and single fruit weight, were evaluated from an F₁ population of ‘Maguili’ and ‘Jiaohesanyuehong’ which consisted of 76 individuals. The four traits showed continuous variation with the typical characteristic of quantitative traits. According to the constructed genetic linkage map, there were totally 23 QTLs linked the four traits, include 2 QTLs for tartaric content, 4 QTLs for malic acid content, 12 QTLs for sucrose content and 5 QTLs for single fruit weight, phenotypic variation explained by each QTL ranged from 13.85% to 88.3%, and its LOD value within 3.15-5.61.

Key words: litchi (Litchi chinensis Sonn.); QTL analysis; fruit traits