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。本研究的结果可供做秋茄复育计划的参考。
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=0.043). Low genetic differentiation among subpopulations reflects POtential influences of gene flow. It is likely that environmental stress, created by the dry and wet microhabitats, is an important force thathas potential to influence the growth rate of Kandelia candel. However, it docs not have the Potential to influence patterns of genetic structure within local population in mangrove swamp.
出处
《生物多样性》
CAS
CSCD
1994年第2期68-75,共8页
Biodiversity Science
