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|本期目录/Table of Contents|

基于ITS序列探讨珍珠菜属过路黄组的系统关系

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2012年02期
页码:
163
栏目:
系统演化植物学与生物地理学
出版日期:
2012-03-25

文章信息/Info

Title:
Phylogenetic relationships of sect.Nummularia (Lysimachia):evidence from ITS sequences
作者:
郑伟12 陈龙清1*
1.华中农业大学 园林学院, 武汉 430070; 2.昆明理工大学 现代农业工程学院, 昆明 650224
Author(s):
ZHENG Wei12 CHEN LongQing1*
1.College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan 430070, China; 2.College of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650224, China
关键词:
珍珠菜属 过路黄组 ITS 系统关系
Keywords:
Lysimachia Nummularia nrDNA ITS molecular phylogeny
分类号:
Q949.773.2
DOI:
-
文献标识码:
A
摘要:
测定了紫脉过路黄、临时救和过路黄的nrDNA ITS序列,并分析了珍珠菜属过路黄组17个物种的遗传距离及亲缘关系。结果表明,过路黄组植物的ITS序列长度在620~628间,一致性高达90.59%,种间遗传距离为0.002~0.199。系统发育树表明:(1)紫脉过路黄、临时救和小茄亲缘关系较近;(2)大叶过路黄、落地梅和过路黄亲缘关系较近;(3)山萝过路黄、贯叶过路黄、管茎过路黄、叶头过路黄、峨眉过路黄及三角叶过路黄亲缘关系较近。ITS序列分析结果为组内植物的鉴定、分类及系统进化提供了新的参考。
Abstract:
The rDNA ITS sequences of L.rubinervis,L.congestiflora and L.christinae were sequenced. The genetic distance and phylogenetic relationship of 17 species from sect.Nummularia(Lysimachia)were analyzed. The results showed that the length of ITS sequence of sect.Nummularia was 620-628 base pairs,the homology was 9059%,and the genetic distance was 0.002-0.199. The ITS data suggested that:(1)L.japonica,L.rubinervis and L.congestiflora were closely related;(2)L.fordiana,L.paridiformis and L.christinae were closely related;(3)L.melampyroides,L.perfoliata,L.fistulosa,L.phyllocephala,L.omeiensis and L.deltoidea had close relationship. The ITS analysis provided new reference for the relationship,identification and classification of the species in sect.Nummularia.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2012-03-25