Sibling species in interstitial flatworms:: a case study using Monocelis lineata (Proseriata: Monocelididae)
Sibling species in interstitial flatworms:: a case study using Monocelis lineata (Proseriata: Monocelididae)
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DOI：
10.1007/s00227-004-1367-x
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发表时间：
2004-09-01
期刊：
影响因子：
2.4
通讯作者：
Curini-Galletti, M
中科院分区：
文献类型：
--
作者：
Casu, M;Curini-Galletti, M
研究了形态学上难以区分的淡水和海水中的Monocelis lineata（O.F.）Muller，1774）的等位酶电泳分析。15份M. lineata（13个来自地中海和两个来自大西洋）从沿海海洋和咸水栖息地的变化进行了检查，在18个位点。11个位点在至少一个群体中表现出多态性。线状的。发现群体内遗传变异水平较低，平均观察和预期杂合性值分别为H（o）=0.015+/-0.015至0.113+/-0.044和H（e）=0.028+/-0.028至0.138+/-0.054。一些私有等位基因的出现表明，种群间存在明显的遗传分化。Rogers遗传距离D（R）=0.003 ~ 0.676，F（ST）值为0.918 ± 0.012，P
The genetic relationships between morphologically indistinguishable marine and brackish-water populations of Monocelis lineata (O.F. Muller, 1774) (Proseriata: Monocelididae) were analysed by means of allozyme electrophoresis. Fifteen samples of M. lineata (13 from the Mediterranean and two from the Atlantic) from coastal marine and brackish-water habitats were examined for variation at 18 loci. Eleven loci were polymorphic in at least one population of M. lineata. Low levels of within-population genetic variability were found, with average observed and expected heterozygosity values ranging from H(o)=0.015+/-0.015 to 0.113+/- 0.044, and from H(e)=0.028+/-0.028 to 0.138+/-0.054, respectively. The occurrence of a number of private alleles indicated a marked genetic divergence among populations of M. lineata, with Rogers' genetic distances ranging from D(R)=0.003 to 0.676 and a highly significant F(ST) value (0.918+/-0.012, P