%0 Journal Article
%T Cytotaxonomic Studies on the Genus Aspidistra II<br>蜘蛛抱蛋属的细胞分类学研究Ⅱ
%A Huang Jin-ling
%A Ma Li-ming
%A Hong De-yuan
%A <br>黄锦岭
%A 马黎明
%A 洪德元
%J 中国科学院研究生院学报
%D 1997
%I 
%X Karyomorphology was investigated on 13 species of the genus Aspidistra (Liliaceae s. l. ) from China,among which six are found to have the chromosome number 2n= 36  and seven 2n = 38. For the species with the chromosome number 2n= 36, karyotypes are reported as follows. l. A. triloba Wang et Lang:2n = 36 = 6m + 14sm+ 16st(2sat);2. A. hexianensis J. L. Huang et Hong:2n = 36 = 16m + 6sm + 14st(2sat); 3. A. retusa K. Y. Lang et S. Z. Huang: 2n = 36 = 16m + 6sm + 14st (2sat) ;4. A. dolichanthera X. X. Chen:2n = 36 = 16m+ 6sm(2sat) + 12st + 2t;5. A. fungilliformis Y. Wan:2n = 36 = 16m + 2sm + 18st (2sat) ;6. A. tonkinensis Wang et Tang: 2n = 36 = 14m + 8sm + 12st (2sat) + 2t + nB. Karyotypes of the species with the chromosome number 2n=38 are also formulated as follows:7. A. minutifiora Stapf:2n= 38 = 12m + 12sm + 8st (2sat) + 6t and 2n = 38 = 12m + 12sm +12st (2sat) +2t respectively in two different populations;8. A .fimbriata Wang et Lang:2n= 38 + 2B = 20m + 4sm + 12st + 2t (2sat) + 2B; 9. A. sichuanensis K. Y. Lang et Z. Y. Zhu:2n = 38 =20m + 6sm + 12st(2sat); 10. A. elatior Bl. :2n= 38 = 22m + 4sm(2sat) + 12st;  11.A. subrotata Y. Wan et C. C. Huang:2n= 38= 22m + 2sm + 14st(2sat); 12. A. longanensis Y. Wan: 2n = 38 = 20m + 6sm + 12st (2sat); 13. A. longiloba G. Z. Li: 2n = 14m + 12sm(2sat) + 8st + 4t. All the above species have bimodal karyotypes which belong to Stebbins'karyotype classification 2C. In addition, several viewpoints are proposed: 1. The first pair of small chromosomes, almost always having satellites on the short arms, characterizes the karyotypes of the genus. 2. Chromosome numbers are closely correlated with floral structure. 2n=38 is always found in the species with dingy-colored flower, swollen stigma and stamens inserted at the base of perianth tube;the species with bright-colored flower, smaller stigma and stamens inserted at upper or middle part of perianth tube usually have the chromosome number 2n = 36.  3. The basic chromosome number x = 19 is considered as original one in the genus,while x=18 is derived.
%K Aspidistra
%K Karyotype
%K Characteristic chromosome
%K Floral structure
%K Dysploid
%K Original basic chromosome number<br>蜘蛛抱蛋属
%K 核型
%K 特征染色体
%K 花结构
%K 非整倍性变异
%K 染色体基数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=67CDFDECD959936E166E0F72DE972847&aid=370C0F7701EB9A5D574A2EBF25D71F10&yid=5370399DC954B911&vid=6209D9E8050195F5&iid=CA4FD0336C81A37A&sid=F3583C8E78166B9E&eid=EA389574707BDED3&journal_id=1002-1175&journal_name=中国科学院研究生院学报&referenced_num=0&reference_num=0