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林业科学 ›› 1995, Vol. 31 ›› Issue (3): 215-219.

• 论文及研究报告 • 上一篇    下一篇

福建柏变异类型的核型研究

李兆丰1,周东雄2,安平3   

  1. 1. 福建三明市林委, 三明 365000
    2. 福建沙县林科所, 沙县 365500
    3. 福建省林业科学研究所, 福州 350012
  • 收稿日期:1994-05-07 出版日期:1995-05-25 发布日期:1995-05-25

A STUDY ON THE VARIANT TYPES OF KARYOTYPES FOR FOKIENIA HODGINSII(DUNN.)HENRY ET THOMAS

Zhaofeng Li1,Dongxiong Zhou2,Ping An3   

  1. 1. Forestry Commission of Sanming City Sanming 365000
    2. Shaxian Forestry Research Institute Shaxian 365500
    3. Fujian Forestry Research Institute Fuzhou 350012
  • Received:1994-05-07 Online:1995-05-25 Published:1995-05-25

摘要:

论述了产于福建中部地区的福建柏的核型分化。四个居群的染色体数目均为2n=22, 但它们之间的核型组成不同。发现具园柱状树冠的变异类型具4个随体染色体, 而具宽塔状树冠的普通类型则仅具2个随体染色体。作者推测福建柏树冠和育性的变异可能与核型的改变相关。同时指出该新变异类型具有重要的观赏价值, 对该新的遗传资源应加以保护和深入研究。

关键词: 福建柏, 变异型, 核型

Abstract:

This paper expounds the karotypic differdntiation of Fokienia hodginsii collected from the central part of Fujian Province, China. All the four populations studied were found to have the same somatic chromosome numbers of 2n =22, but there were more or less differences in karotypeic constitution among the four populations. The two populations with columner tree crown have four sat-chromosomes, while the remainder two with wide tower-shaped tree crown have only twosat-chromosomes. The authors consider that the karyotypic variation might be related to the variations of crown shape and fertility of these populations, and suggest that the populations with columnar tree crown, which might be represent a new variant type, and have impirtant value, and should be protected and further studied.

Key words: Fokienia hosginsii, Variant type, Karyotype