A Karyotype Study of Porandra Hong (Commelinaceae)

A Karyotype Study of Porandra Hong (Commelinaceae)

Yang Qing-er, Wang Ying-zheng, Zhang Da-ming, Hong De-yuan

Received:1900-01-01 Revised:1900-01-01 Online:1994-05-18 Published:1994-05-18
Contact: Yang Qing-er

Abstract

Abstract:

In this paper, the chromosome number and karyotype of the small genus, Porandra Hong (Commelinaceae), are reported for the first time. The two species, P. ramose Hong and P. scandens Hong, were found to have the same chromosome number 2n=36 and quite similar karyotypes, which could be formulated as 2n = 36 = 4m=26sm + 6st (2sat).Having the same original basic chromosome number x = 9 and very similar chromosome morphology, Porandra might be closely related to Amischotolype and Coleotrype, as indicated

also by their similar gross-morphological characters.

Key words: Porandra Hong, Karyotype

Yang Qing-er, Wang Ying-zheng, Zhang Da-ming, Hong De-yuan. A Karyotype Study of Porandra Hong (Commelinaceae)[J]. .

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A Karyotype Study of Porandra Hong (Commelinaceae)

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