Bernardi G, Sordino P, Powers D A
Department of Biological Sciences, Hopkins Marine Station, Stanford University, Pacific Grove, CA 93950.
Proc Natl Acad Sci U S A. 1993 Oct 15;90(20):9271-4. doi: 10.1073/pnas.90.20.9271.
Molecular phylogenies using mitochondrial DNA and nuclear alleles of the lactate dehydrogenase B locus were found to be concordant for populations of Fundulus heteroclitus ranging from Canada to Florida. Both mitochondrial DNA and lactate dehydrogenase alleles show a clear separation between the northern individuals (from Nova Scotia and Maine) and the southern ones (from Georgia and Florida), with a mixed population found in the geographic intermediate (New Jersey). An historical isolation, possibly as ancient as 0.5-1 million years old, may have played a role in shaping the situation observed today.
利用线粒体DNA和乳酸脱氢酶B基因座的核等位基因构建的分子系统发育树显示,从加拿大到佛罗里达州的异鳞鳉种群具有一致性。线粒体DNA和乳酸脱氢酶等位基因均显示,北方个体(来自新斯科舍省和缅因州)与南方个体(来自佐治亚州和佛罗里达州)之间存在明显分化,在地理中间区域(新泽西州)发现了一个混合种群。一种可能古老至50万到100万年的历史隔离,可能在塑造如今观察到的这种情况中发挥了作用。