---

作 者 ：黄向旭,严岳鸿,易绮斐,邢福武

期 刊 ：热带亚热带植物学报 2010年 18卷 4期 页码：391~393

关键词：染色体数目；核型；喜盐草；贝克喜盐草；香港；

Keywords:Chromosome number, Karyotype, Halophila ovalis, Halophila beccarii, Hong Kong,

摘 要 ：报道了分布于我国香港特别行政区的喜盐草属(Halophila Thou.) 2种植物的染色体数目和核型，其体细胞中期染色体数目均为2n=18。它们的核型公式分别为：喜盐草(H. ovalis (R. Br.) Hook. f.) 2n=2x=18=4m+14sm；贝克喜盐草(H. beccarii Asch) 2n=2x=18=8m+10sm(首次报道)。核型均属于2B型。

Abstract:The chromosome numbers and karyotypes of two species of Halophila are reported. Somatic chromosome numbers of the two species all were 2n=18(x=9). Their karyotype formulas were as follows: 2n = 2x = 18 = 4m + 14sm for H. ovalis (R. Br.) Hook. f., and 2n = 2x = 18 = 8m + 10sm for H. beccarii Asch which is reported for the first time. The karyotypes of the two species belong to category 2B of Stebbins.

---