中国蜘蛛抱蛋属的细胞分类学研究Ⅱ

报道了 11种蜘蛛抱蛋属植物的染色体数目和核型。结果如下 :伞柱蜘蛛抱蛋 ** ,2 n=36 =2 0 m+6 sm(2 sat) +10 st,属 2 C型 ;辐花蜘蛛抱蛋 ** ,2 n=38=2 2 m+6 sm(2 sat) +10 st,属 2 C型 ;棒蕊蜘蛛抱蛋 **,2 n =36 =18m +8sm (2 sat) +10 st,属 2 C型 ;柳江蜘蛛抱蛋 **,2 n=38=2 0 m +6 sm(2 sat) +12 st,属 2 C型 ;小花蜘蛛抱蛋 ,2 n=38=16 m +4sm +8st (2 sat) +10 t,属 3C型 ;线叶蜘蛛抱蛋 ** ,2 n=36 =2 0 m(2 sat) +16 st,属 2 C型 ;罗甸蜘蛛抱蛋 ,2 n=38=16 m+6 sm(2 sat) +16 st,属 2 C型 ;四川蜘蛛抱蛋 ,2 n=38=2 4 m +4sm+10 st (2 sat) ,属 2 C型 ;广东蜘蛛抱蛋 ,2 n=36 =18m +2 sm(2 sat) +16 st,属 2 C型 ;洞生蜘蛛抱蛋 **,2 n=36 =18m +2 sm(2 sat) +14st+2 t,属 2 C型 ;大花蜘蛛抱蛋 ,2 n=36 =16 m+6 sm(2 sat) +14st,属 3C型。其中棒蕊蜘蛛抱蛋、柳江蜘蛛抱蛋、线叶蜘蛛抱蛋和洞生蜘蛛抱蛋的染色体数目和核型以及广东蜘蛛抱蛋的核型均为首次报道。

Cytotaxonomy of the genus Aspidistra from China

Chromosome numbers and karyotypes of 11 species of the genus Aspidistra from china are reported, among which six are found to have the chromosome number 2n=36 and five 2n=38. Their karyotype formulas are listted as follows:(1) A. fungilliformis : 2n=36=20m 6sm(2sat) 10st, belongs to 2C type;(2) A. subrotata : 2n=38=22m 6sm(2sat) 10st, 2C type;(3) A. claviformis : 2n=36=18m 8sm(2sat) 10st, 2C type; The chromosome number and karyotype are reported for the first time;(4) A. patentiloba : 2n=38=20m 6sm(2sat) 12st, 2C type; The chromosome number and karyotype are reported for the first time;(5) A. minutiflora : 2n=38=16m 4sm 8st(2sat) 10t, 3C type;(6) A. linearifolia : 2n=36=20m(2sat) 16st, 2C type; The chromosome number and karyotype are reported for the first time;(7) A. luodianensis : 2n=38=16m 6sm(2sat) 16st, 2C type;(8) A. sichuanensis : 2n=38=24m 4sm 10st(2sat);(9) A. lurida : 2n=36=18m 2sm(2sat) 16st, 2C type;(10) A. cavicola : 2n=36=18m 2sm(2sat) 14st 2t, 2C type; The chromosome number and karyotype are reported for the first time;(11) A. tonkinensis : 2n=36=16m 6sm(2sat) 14st, 3C type.