分子植物育种 - page 5

分子植物育种
(
网络版
), 2016
,
14
,
1072-1079
Fenzi Zhiwu Yuzhong (Online), 2016, Vol.14, 1072-1079
Copyright © 2016 BioPublisher 1072
研究报告
Research Report
白菜类蔬菜
Chs
基因克隆及分析
熊正贵
2
,
姚启伦
1
,
方平
1
,
敖向建
1
,
陈发波
1
1
长江师范学院生命科学与技术学院
,
重庆
, 408100;
2
重庆市黔江区种子管理站
,
黔江
, 409000
通讯作者
,
;
作者
分子植物育种
, 2016
,
14
,
11
doi: 10.5376/mpb.cn.2016.14.00011
这是一篇采用
Creative Commons Attribution License
进行授权的开放取阅论文。只要对本原作有恰当的引用,版权所有人允许并同意第三方无条
件的使用与传播。
引用格式
(
中文
)
熊正贵等
, 2016,
白菜类蔬菜
Chs
基因克隆及分析
,
分子植物育种
(online), 14(11): 1072-1079 (doi: 10.5376/mpb.cn.2016.14.00011)
引用格式
(
英文
)
Xiong et al., 2016,
Effects of γ Ray Irradiation with Different Dosages on Strawberry Seeds and their Genetic Diversity Revealed by ISSR, Fenzi Zhiwu
Yuzhong (online) (Molecular Plant Breeding), 14(11): 1072-1079 (doi: 10.5376/mpb.cn.2016.14.0011)
摘 要
为探讨我国白菜蔬菜的起源及遗传多样性,克隆、测序白菜类蔬菜不同变种的
Chs
基因序列。结果表明,白菜类
蔬菜
Chs
基因序列没有大于
3 bp
的插入
/
缺失,白菜类蔬菜
Chs
基因是一个非常保守的基因,揭示出白菜类蔬菜之间遗传差
异较小,亲缘关系较近。系统发育树将白菜类蔬菜分成
2
个分支:第
1
分支包括山东白菜、塌棵菜、雅安白菜、紫菜苔、重
庆白菜和伊犁野生油菜,相对较进化;第
2
分支包括广西菜心、青菜、雅安黄油菜、芜菁和涪陵野生油菜,相对较原始。网
状支系分析没有显示明显的星状结构,说明所选材料中没有白菜类蔬菜进化的共同祖先。网状进化式样分析表明供试的白菜
类蔬菜间不仅存在树状的进化关系,还存在大量的非树状进化史。研究结果支持白菜起源的
分化起源
假说,认为现代栽培
的白菜类蔬菜是由更加原始的祖先进化而来,在白菜类蔬菜进化史上存在较多的网状进化事件。
关键词
白菜类蔬菜
, Chs
基因
,
遗传多样性
Cloning and Analysis of ChsGene in Cabbage (Brassica rapa) Vegetables
Xiong Zhenggui
2
, Yao Qilun
1
, Fang Ping
1
, Ao Xiangjian
1
, Chen Fabo
1
1 Life Science and Technology Institute, Yangtze Normal University, Chongqing, 408100;
2 Seed Administrative Station of Qianjiang District, Chongqing, 408100
Corresponding author,
;
Authors
Abstract
To explore the DNA polymorphism and evolution of Chs genes in Chinese cabbage vegetables, the Chs DNA
sequences from Brassica were cloned and sequenced. By aligning these sequences and analyzing DNA variations in Chs loci, no
insertion/deletion more than 3 bp occured in the Chs sequences, indicating a low level of DNA polymorphism in Chinese B. rapa
vegetables. A maximum likelihood analysis showed that the B. rapa sequences were separated into two well-supported groups. Clade
one included Shandong Chinese cabbage, broadbeaked mustard, Yaan Chinese cabbage, purplepakchoi, Chongqing Chinese cabbage,
and Yili wild rapeseed, which were more evolutionary. Clade two included Guangxi flowering cabbage, pakchoi, Yaan Yellow
rapeseed, turnip, and Fuling wild rapeseed, which were ancestral types. Median-joining (MJ) network analysis showed that no
obvious star like structure was found. It indicated that no common ancestor was found among the B. rapa. A Splits Tree analysis
indicated that both tree and reticulate evolution existed among Chinese B. rapa and its related plants. This supported the evolution
hypothesis of “Differentiation Origin” model in Chinese cabbage. The modern Chinese cabbage vegetables were evolved from more
primitive ancestors. Many reticulate evolution events occured during the evolutionary of Chinese cabbage vegetables.
Keywords
Cabbage vegetables, Chs gene, Genetic diversity
研究背景
基白菜类蔬菜是十字花科
(Brassicaceae)
芸薹属
(
Brassica
)
植物中重要的蔬菜作物,是人们所需营养
的重要来源之一,其栽培面积居中国各类蔬菜之
首,在蔬菜周年生产和供应上有着极其重要的地
位,在全国蔬菜年供应量中达到了
30% (
张德双等
,
2015)
。中国是白菜类蔬菜的起源及分化中心之一,
收稿日期:
2016
04
22
接受日期:
2016
05
24
发表日期:
2016
05
27
基金项目:本研究由教育部科技司资助项目
(Z2011143)
、重
庆高校创新团队建设计划资助项目
(KJTD20132)
、重庆市教
委资助项目
(KJ121304)
和重庆市涪陵区科委计划资助项目
(FLKJ, 2012ABB1085)
共同资助。
1,2,3,4 6,7,8,9,10,11,12,13,14
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