Chromosome numbers and karyotypes of 18 species of Epimedium sect. Diphyllon (Berberidaceae) from central China
Chromosome numbers and karyotypes of 18 species of Epimedium sect. Diphyllon (Berberidaceae) from central China
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淫羊藿科18种植物的染色体数目及核型。
DOI:
10.1080/00087114.2018.1499482
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发表时间:
2018-10
期刊:
影响因子:
2.1
通讯作者:
Meng Ying
中科院分区:
文献类型:
--
作者:
Zhang Cheng;Peng Zhi-Bang;Nie Ze-Long;Zhang Dai-Gui;Li Ke-Gang;Meng Ying
ABSTRACT Epimedium is the largest and one of the most important herbaceous genera in Berberidiaceae, especially for section Diphyllon, which has a diversification center in central China. Chromosome numbers and karyomorphology of 24 accessions were examined, representing 18 Epimedium species, five of which were counted here for the first time. A chromosome number of 2n = 2x = 12 was observed for all taxa and all karyotypes were Stebbins’ 2A, except for E. acuminatum, E. brevicornu, E. ilicifolium and one accession of E. leptorrhizum, which were 3A. Their asymmetry index (AI) values vary from 1.71 to 4.56. Intercalary satellites are commonly found on the first or second pair. More than two individuals were sampled for E. franchetii, E. leptorrhizum, E. stellulatum, and E. wushanense and all had consistent and stable cytological traits with respect to their karyotype formula, Stebbins’ asymmetry, and AI values, except for E. leptorrhizum. The significance and limits of the cytological results for Epimedium are also briefly discussed.
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DOI:
--
发表时间:
1971
期刊:
--
影响因子:
--
作者:
G. Stebbins
通讯作者:
G. Stebbins
影响因子:
2
作者:
Sheng, Mao-Yin;Wang, Ling-Jiao;Tian, Xing-Jun
通讯作者:
Tian, Xing-Jun
影响因子:
3.4
作者:
Stace, CA
通讯作者:
Stace, CA
DOI:
--
发表时间:
1996
期刊:
Acta Botanica Yunnanica
影响因子:
--
作者:
He Shun
通讯作者:
He Shun
DOI:
--
发表时间:
2002
期刊:
Chinese journal of immunology
影响因子:
--
作者:
M. Hai
通讯作者:
M. Hai