国产香茶菜属十三个分类群的细胞学研究

doi:10.7677/ynzwyj201413237

Plant Diversity ›› 2014, Vol. 36 ›› Issue (05): 561-568.DOI: 10.7677/ynzwyj201413237

国产香茶菜属十三个分类群的细胞学研究

向春雷1, 陈亚萍1、2, 船本常男3, 彭华1

1 中国科学院昆明植物研究所东亚植物多样性与生物地理学重点实验室，云南昆明650201；2 中国科学院大学，北京100049；3 日本昭和药科大学，药学基础教育与研究中心，日本东京1948543

收稿日期:2013-12-12 出版日期:2014-09-25 发布日期:2014-04-24
基金资助:
Knowledge Innovation Project of the Chinese Academy of Sciences (KSCX2EWJ24, KSCX2EWZ1), National Natural Science Foundation of China (31270245, 31110103911), and State Key Laboratory of Systematics and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences (LSEB201208)

Cytology of Thirteen Taxa in the Genus Isodon (Lamiaceae: Nepetoideae) from China

XIANG Chun-Lei-1, CHEN Ya-Ping-1、2, Tsuneo FUNAMOTO-3, PENG Hua-1

1 Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; 2 University of Chinese Academy of Sciences, Beijing 100049, China; 3 Biological Institute, Fundamental Education and Research Center of Pharmaceutical Sciences, Showa Pharmaceutical University, 1948543 Tokyo, Japan

Received:2013-12-12 Online:2014-09-25 Published:2014-04-24
Supported by:
Knowledge Innovation Project of the Chinese Academy of Sciences (KSCX2EWJ24, KSCX2EWZ1), National Natural Science Foundation of China (31270245, 31110103911), and State Key Laboratory of Systematics and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences (LSEB201208)

摘要/Abstract

摘要：

对国产11种2变种共16个居群的香茶菜属植物的染色体数目进行了研究。除线纹香茶菜细花变种以外，其它种类的染色体数目均为首次报道。研究结果表明，有12个物种为二倍体，其染色体数目均为2n=24，推测该属植物的染色体基数为x=12。而细锥香茶菜既有染色体数目为2n=24的居群，也存在2n=48的居群，表明该种为二倍体或四倍体，同时2n=48的染色体数目也是香茶菜属内的首次报道。

关键词: 染色体数目, 横断山脉, 香茶菜属, 多倍体

Abstract:

This paper reports the chromosome numbers of 11 species and two varieties of Isodon from 16 populations in China. For all taxa except Ilophanthoides var. graciliflorus, chromosome numbers are reported here for the first time. All taxa are counted as diploid (2n=24): Ialbopilosus, Icoetsa, Iflabelliformis, Iforrestii, Igesneroides, Ilophanthoides var. graciliflorus, Ioreophilus var. elongatus, Iparvifolius, Ipleiophyllus, Ipolystachys, Iracemosus, Iscoparius, and Iweisiensis. Thus, x=12 is inferred as the basic chromosome number of Isodon. In addition, the chromosome number 2n=48, which is newly recorded for the genus, is also reported in one population of Icoetsa, indicating the species to be diploid and tetraploid.

Key words: Chromosome number, Hengduan Mountains, Isodon, Polyploidy

中图分类号:

Q 942

向春雷, 陈亚萍, 船本常男, 彭华. 国产香茶菜属十三个分类群的细胞学研究[J]. Plant Diversity, 2014, 36(05): 561-568.

XIANG Chun-Lei, CHEN Ya-Ping, Tsuneo FUNAMOTO, PENG Hua. Cytology of Thirteen Taxa in the Genus Isodon (Lamiaceae: Nepetoideae) from China[J]. Plant Diversity, 2014, 36(05): 561-568.

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国产香茶菜属十三个分类群的细胞学研究

Cytology of Thirteen Taxa in the Genus Isodon (Lamiaceae: Nepetoideae) from China

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