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|本期目录/Table of Contents|

 枸杞属(茄科)新类群杂交起源初探()

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2011年03期
页码:
304-311
栏目:
系统与演化植物学
出版日期:
2011-08-01

文章信息/Info

Title:
 A preliminary study on the hybrid origin of new taxa in Lycium (Solanaceae)
作者:
 吴莉莉1 韦若勋2 杨庆文3 张志耘2*
 1.黔南民族师范学院 生命科学系, 贵州 都匀 558000; 2.中国科学院 植物研究所 系统与进化植物学国家重点实验室, 北京 100093; 3.中国农业科学院 作物科学研究所, 北京 100081
Author(s):
 WU Li-Li1 WEI Ruo-Xun2 YANG Qing-Wen3 ZHANG Zhi-Yun2*
1.Department of Biology, Qiannan Normal College for Nationalities, Duyun 558000, China; 2.State Key Laboratory of Systematic & Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;3.Laboratory of Wild Rice Research, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
关键词:
 枸杞属 新分类群 杂交 分子系统学 GBSSI基因
Keywords:
 Lycium new taxa hybrid molecular systematics GBSSI
分类号:
-
DOI:
-
文献标识码:
A
摘要:
 为探讨枸杞属新类群的起源及国产枸杞属植物的亲缘关系,该文使用核基因颗粒性结合淀粉合成酶基因(GBSSI)片段,对国产7个类群的枸杞属植物进行了分子系统学研究。结果表明:中国分布的枸杞属植物属于旧世界类群并分为4个强烈支持的分支,而新类群的形成与杂交密切相关。此外,初步分析还显示宁夏枸杞有较高的遗传分化。
Abstract:
 The wolfberry is an important medicinal plant. Clarifying the origin of new taxa and the phylogenic relationship among Chinese Lycium species (Solanaceae) will provide a scientific basis to guide research on the germplasm and variety breeding. In the present paper,we reported the results of a preliminary phylogenetic study of the seven Chinese taxa in Lycium using the DNA sequence data from the nuclear granulebound starch synthase I gene(GBSSI). Maximumlikelihood(ML)analysis of the data showed that species of Chinese Lycium belonged to a monophyletic Old World clade and are placed in four strongly supported subclades. The phylogenetic results suggested that hybridization may play an important role in the origin of new taxa in Lycium. In addition,our result also indicated that L.barbarum is highly divergent among the seven taxa of Lycium.

参考文献/References

备注/Memo

备注/Memo:
更新日期/Last Update: 2011-07-01