中国横断山区狭义百合科四属部分植物核型研究

doi:10.3724 SP.J.1143.2009.08179

Plant Diversity ›› 2009, Vol. 31 ›› Issue (05): 399-405.DOI: 10.3724 SP.J.1143.2009.08179

中国横断山区狭义百合科四属部分植物核型研究

高云东, 周颂东, 何兴金

四川大学生命科学学院, 四川成都 610065

收稿日期:2008-09-12 出版日期:2009-10-25 发布日期:2009-10-25
通讯作者: 何兴金

Karyotypes of Four Genera in Liliaceae ( s . str .) from Hengduan Mountains of Southwestern China

GAO Yun-Dong, ZHOU Song-Dong, HE Xing-Jin

College of Life Science , Sichuan University , Chengdu 610064 , China

Received:2008-09-12 Online:2009-10-25 Published:2009-10-25
Contact: HE Xing-Jin

摘要/Abstract

摘要： 用细胞压片法对分布于中国横断山区的百合科4 属部分植物进行了核型研究, 其中百合属( Lilium)中除卷丹( L. tigrinum) 为三倍体2 n = 36 外, 大部分都是2 倍体, 2 n = 24 ; 贝母属( Fritillaria) 全为2 倍体, 2 n = 24 , 其次缢痕较多, 且比较明显; 假百合属假百合( Notholirion bulbuliferum) 同时存在2 倍体和3倍体, 2 n = 24 以及2 n = 36; 洼瓣花属( Lloydia) 只研究了一种, 即西藏洼瓣花( Lloydia tibetica) , 发现2 n= 23。4 个属的核型区别明显, 为确定属间亲缘关系提供了一定的参考。其中, 马塘百合( L. matangense)
和西藏洼瓣花的核型是首次报道。

关键词: 染色体, 细胞分类学, 百合科

Abstract: Chromosome numbers andmorphology of 4 genera of Liliaceae ( s. str .) from HengduanMountains of southwestern China were studied. Almost all populations in Lilium were diploid, with 2 n = 24 , except that populations of L. tigrinum were found triploid, with 2n = 36. All taxa in Fritillaria investigated were diploid , with 2n = 24 and the secondary constrictions were obvious and abundant. Diploid and triploid exist in different populations of Notholirion bulbuliferum, with 2n = 24 and 2n = 36, and there was one population contained both ploidy types. For Lloydia , only one taxon Lloydia tibetica
was studied, with 2n = 23. All taxa studied were collected in Hengduan Mountains, and the differences among these genera were obvious, which would contribute to the future taxonomic study . The karyotypes of L. matangense and Lloydia tibetica were documented for the first time.

Key words: Chromosomes

中图分类号:

Q 942

高云东, 周颂东, 何兴金 . 中国横断山区狭义百合科四属部分植物核型研究[J]. Plant Diversity, 2009, 31(05): 399-405.

GAO Yun-Dong, ZHOU Song-Dong, HE Xing-Jin. Karyotypes of Four Genera in Liliaceae ( s . str .) from Hengduan Mountains of Southwestern China[J]. Plant Diversity, 2009, 31(05): 399-405.

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中国横断山区狭义百合科四属部分植物核型研究

Karyotypes of Four Genera in Liliaceae ( s . str .) from Hengduan Mountains of Southwestern China

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