作 者 ：Chen Wei-Sin, Ye Zhi-Yun, Cai Ling
期 刊 ：植物分类学报 1989年 1期
关键词：黄枝油杉矩鳞油杉核型；
Keywords:Keteleeria.calcarea Cheng et L. K. Fu, K. oblonga Cheng et L. K. Fu, Karyotype,
Abstract:
In the present paper the karyotypes of Keteleeria calcarea Cheng et L. K. Fu and
K. oblonga Cheng et L. K. Fu are reported, and they are compared with those of K. cyclolepis
Flous and K. formosana Mast. The karyotype formula of K. calcarea Cheng et L. K. Fu is
K(2n)=24=16m+8sm, and K. oblonga Cheng et L. K. Fu is K(2n)=24=18m+6sm. They
both belong to “2A” type of karyotype symmetry. There are secondary constrictions on the
short arms of 1th, 3th, 6th chromosome pairs in K. calcarea Cheng et L. K. Fu and 2th, 4th,
6th in K. oblonga Cheng et L. K. Fu. K. oblonga Cheng et L. K. Fu is more advanced than K.
cyclolepis Flous, but more primitive than K. calcarea Cheng et L. K. Fu, and K. formosana
Mast is the most advanced among the four species in karyotype.