越南油茶的核型分析

<正> 越南油茶(Camellia vietnamensis T.C.Huang ex Hu)分布于我国广东和广西。越南油茶的种子油可供食用,为我国南方主要油料经济树种之一。越南油茶的染色体数目巳由黄少甫等同志报道过,2n=120,而核型分析方面的工作未见报道。

KARYOTYPE ANALYSIS IN CAMELLIA VIETNAMENSIS

A karyotype analysis of Camellia vietnamensis T. C. Huang ex Hu herewith presented is being the first time, and the chromosomes in root tip cell was found to be 2n=120 (fig. 1). The somatic complement showed a slight variation in size, i. e., the 2, 4, 7, 9, 11, 12 and 15th pairs had median contromeres, the 1 3, 5, 6, 8 and 13th pairs had submedian constrictions, the 10 and 14th pairs had subacroc-entric constrictions. According to the classification systems given by Leven et al[18] , the karyotype formula of the species is therefore K(2n)=56m + 48sm+16st. The species is an octoploid.