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Chromosome Numbers and Karyotype Analysis of 9 Species in Hydrocharitaceae

作 者 ：Wang Ning-Zhu

期 刊 ：植物分类学报 1986年 5期

Keywords:Hydrocharitaceae, Blyxa, Hydrilla, Ottelia, Vallisneria, Hydrocharis, Chromosome, Karyotype,

Abstract:

The present paper reports the chromosome numbers and karyotypes in 9
species of 5 genera from China.  It is found that all these analysed species are diploid.
The karyotypes of most species are made of m and sm and of a few of st chromosomes.
These are grouped into four types, 1A, 2A and 1B, 2B.  Blyxa is the most primitive, and
Hydrilla is the most advanced.

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