Karyomorphology of six species of the genus Aspidistra Ker-Gawl. (Fam. Asparagaceae s.l.) from China
2014
Meng, Tao | Gao, Qi
The present study reports the chromosome numbers and karyotypes of six Aspidistra species from China, of which four species from Guangxi are described for the first time, i.e., A. bicolor with 2n = 36 = 20m + 2sm + 12st + 2t, A. cerina with 2n = 36 = 20m + 2sm + 14st, A. obliquipeltata with 2n = 38 = 20m + 6sm + 12st and A. connata with 2n = 38 = 20m + 6sm + 12st. A. papillata with 2n = 38 = 22m + 2sm + 14st, is a new record to Guizhou, and first report for cytological data. The karyotype of A. retusa from Guangxi, formulated as 2n = 36 = 14m + 10sm + 12st, is different from the previous report for the chromosome pair VIII, XI and XII pairs that depict their submedian karymorpholgy without any satellites . Further, the intra- and interchromosomal asymmetry indices of the karyotypes of the above species are also presented that are helpful in elucidating the karyotype evolution in Aspidistra.
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