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驼绒藜属三个种的核型分析

库尔班·尼扎木丁   

  1. (新疆八一农学院,乌鲁木齐)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1984-12-18 发布日期:1984-12-18
  • 通讯作者: 库尔班·尼扎木丁

Karyotype Analysis of Three Species of Ceratoides (Chenopodiaceae)

Kurban·Nizamidin   

  1. (Xinjiang August-1 Agricultural College,  Ürümqi)
  • Received:1900-01-01 Revised:1900-01-01 Online:1984-12-18 Published:1984-12-18
  • Contact: Kurban·Nizamidin

关键词: 驼绒藜属, 驼绒藜, 心叶驼绒藜, 华北驼绒藜, 核型

Abstract:

The karyotypes of 3 species of Ceratoides (C. arborescens,  C. ewersman-
niana and C. latens) were studied. The results show that C. arborescens is a diploid,
with karyotype formula 2n=2x=18=16m+2sm,  C. ewersmanniana is also a diploid,  with
2n=2x=18=14m+4sm,  while C. latens is a tetraploid,  with 2n=4x=36=24m+12sm. Ac-
cording to the karyotypes,  the morphological features and geographical distribution,  C.
arborescens seems to be a primitive species and it might have originated in northern
China. C. arborescens and C. ewersmanniana are similar to each other,  not only in mor-
phology but also in karyotype,  which shows that they are closely related and that C. ar-
borescens might be the progenitor of C. ewersmanniana. The karyotypes of the 3 species
of Ceratoides are basically identical,  with only minor differences.

Key words: Ceratoides, C.latens, C.ewersmanniana, C.arborescens, Karyotype