生物多样性 ›› 1994, Vol. 02 ›› Issue (2): 68-75.DOI: 10.17520/biods.1994013

• 论文 • 上一篇    下一篇

秋茄(Kandelia candel)的区域性种群(population)遗传结构

黄生   

  1. (国立台湾师范大学,台北 11718)
  • 收稿日期:1993-11-17 修回日期:1993-12-28 出版日期:1994-05-20 发布日期:1994-05-20

Genetic structure of Kandelia candel(L.)Druce in Taiwan

Huang Shong   

  1. Department of Biology,National Taiwan Normal University,Taibei 11718
  • Received:1993-11-17 Revised:1993-12-28 Online:1994-05-20 Published:1994-05-20

摘要:

在台湾北部淡水河河口沼泽地带的秋茄(水笔仔),依其林冠高度略可分成高、矮两个亚种群(Subpopulation)。矮生秋茄长在地面较高的河边,高生秋茄则沿着一条潮溪,长在较低处。使用淀粉凝胶方法研究同功酶组合型式,判断这个地区的区域种群的遗传结构,发现生长在沼泽区内较干燥地带的秋茄和长在潮湿地带的秋茄遗传上的分化程度很低(Fst= 0.043)。这可能是因为区内的基因流传很顺畅,抵消了可能发生的种群分化。

Abstract: The genetic structure of Kandelia candel in a mangrove swamp in Taiwan was examined.Using isozymes as genetic markers,it was demonstrated that this species has a little genetic differentiation within population(Fst= O.043).Low genetic differentiation among subpopulations reflects potential influences of gene flow.It islikely that environmental stress,created by the dry and wetmicrohabitats,is an important force that has potential to influence the growth rate of Kandelia candel.However,it does not have the potential to in-fluence patterns of genetic structure within local population in mangrove swamp.