摘要
本文首次报道了产于江西的黄山贝母(F.huangshanensis Y. K. Yanget C. J. Wu)和浙江的天目贝母(F. monantha Migo)的核型:前者为2n=24=2m+2sm+6st(4sc)+14t;后者为2n=24=2m+2sm+6st(4sc)+14t(2sc)。此外,与国内报道的其它贝母属植物的核型进行了比较和讨论。
The present paper reports the karyotype of Fritillaria huangshanensis Y. K. Yang et C. J. Wu and F. monantha Migo. The former was collected from Jiaugxi, its karyotype fomula in 2n=24=2m+2sm+6st(4sc)+14t. The latter was collected from Zhejiang, its karyotype formula is 2n=24=2m+2sm+6st(4sc)+14t(2sc). The karyotypes of two species were studied for the first time.F. huangshanensis, F. monantha, F. thunbergii, F. anhuiensis and F. hupehensis native to middle and lower reaches of the Changjiang River, have highly similar karyotypical characteristic. The 5 species comparing with F. olgae, F. verticillata, F. yuminensis, F. walujewii and F. pallidiflora native to Xinjiang Northwest China, the karyotype asymmetrical degree of them has increased, the number of secondary constrictions has decreased (from 8—16 reduce to 2—6 ), and the secondary constrictions is only found on the long arms. According to the karyotype analysis, they are a group of evolutionarier population than that of from Xinjiang.
出处
《武汉植物学研究》
CSCD
1989年第3期211-215,共5页
Journal of Wuhan Botanical Research
基金
国家自然科学基金<中国百合科的细胞分类学研究>
关键词
黄山贝母
天目贝母
核型
Fritillaria huangshanensis
F. monantha
Karyotype
