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中国沙棘属植物核型分析

曹亚玲, 吕荣森   

  1.  (中国科学院成都生物研究所,成都)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1989-03-10 发布日期:1989-03-10
  • 通讯作者: 曹亚玲

Karyotype Analysis of Hippophae L. in China

Cao Ya-Ling, Lu Rong-Sen   

  • Received:1900-01-01 Revised:1900-01-01 Online:1989-03-10 Published:1989-03-10
  • Contact: Cao Ya-Ling

摘要:

本文报道了我国沙棘属植物4种5亚种的核型,对各种之间进行了比较,它们的染色体
  数目都是2n=24,全由中部着丝点和近中部着丝点染色体组成,所有种类,只有Hippophae
  thibetana第8对染色体有随体,H.rhamnoidea ssp.sinensis和H.rhamnoides ssp.  mongo-
  lica臂比大于2的染色体比例为0,为2A型,其余各种均为2B型。

关键词: 沙棘属, 染色体, 核型, 核型模式图

Abstract:

The present paper reports karyotypes in 4 species and 5 subspecies of Hippophae L.
in China.  It is found that all of the species and subspecies are diploid, with 2n=24, their com-
plements are made of m and sm chromosomes and of them only H. thibetana has a pair of satel-
lites.  All of these karyotypes are symmetrical and primitive.  It can be simplied as follows:
Hippophae neurocarpa 2n = 2x = 24 = 18m+6sm, H. thibetana 2n = 2x = 24 = 14m
(2sat)+ 8sm, H. rhamnoides L. ssp. gyantsensis 2n=2x=24= 18m+ 6sm, H.
salicifolia 2n = 2x = 24 = 10m + 14sm, H. rhamnoides L. ssp. sinensis 2n=2x=
24 = 18m + 6sm, H. rhamnoides L. ssp. turkestanica 2n = 2x = 24 = 20m + 4sm;
Hi. rhamnoides L. ssp. yunnanensis 2n = 2x = 24 = 14 + 10sm, H. rhamnoides L.
ssp. mongolica 2n = 2x = 24 = 16m + 8sm.
 

Key words: Hippophae, Chromosome, Keryotype, Idiogram