GLOBAL PHYLOGEOGRAPHY OF THE LOGGERHEAD TURTLE (CARETTA-CARETTA) AS INDICATED BY MITOCHONDRIAL-DNA HAPLOTYPES
GLOBAL PHYLOGEOGRAPHY OF THE LOGGERHEAD TURTLE (CARETTA-CARETTA) AS INDICATED BY MITOCHONDRIAL-DNA HAPLOTYPES
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DOI：
10.1111/j.1558-5646.1994.tb02217.x
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发表时间：
1994-12-01
期刊：
影响因子：
3.3
通讯作者：
AVISE, JC
中科院分区：
文献类型：
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作者：
BOWEN, BW;KAMEZAKI, N;AVISE, JC
限制性位点分析的线粒体DNA（mtDNA）的红海龟（Caretta caretta）揭示了大量的主要筑巢种群在大西洋，印度洋，太平洋和地中海的地理结构。基于176个样本从8个筑巢种群，大多数繁殖殖民地区别于其他测定筑巢位置的诊断和固定的限制位点的差异，表明强烈的倾向，出生归巢筑巢女性。系统发育分析显示，两个独特的matrilines在红海龟，不同的平均估计序列差异p = 0.009，一个值类似的幅度最深的种内mtDNA节点（p = 0.007），在全球调查的绿色海龟Chelonia mydas。相反的绿色海龟，其中一个基本的系统发育分裂区分海龟在大西洋和地中海从那些在印度洋和太平洋，基因型代表两个主要的红海龟线粒体DNA谱系中观察到南极地中海和印度太平洋样本。我们把这方面的地理结构在Caretta caretta最近interoceanic基因流，可能介导的能力，这种温度适应的物种利用栖息地周围的南部非洲。这些结果表明，海龟物种的生态和地理范围的差异如何影响其相对的全球种群结构。
Restriction-site analyses of mitochondrial DNA (mtDNA) from the loggerhead sea turtle (Caretta caretta) reveal substantial phylogeographic structure among major nesting populations in the Atlantic, Indian, and Pacific oceans and the Mediterranean sea. Based on 176 samples from eight nesting populations, most breeding colonies were distinguished from other assayed nesting locations by diagnostic and often fixed restriction-site differences, indicating a strong propensity for natal homing by nesting females. Phylogenetic analyses revealed two distinctive matrilines in the loggerhead turtle that differ by a mean estimated sequence divergence p = 0.009, a value similar in magnitude to the deepest intraspecific mtDNA node (p = 0.007) reported in a global survey of the green sea turtle Chelonia mydas. In contrast to the green turtle, where a fundamental phylogenetic split distinguished turtles in the Atlantic Ocean and the Mediterranean Sea from those in the Indian and Pacific oceans, genotypes representing the two primary loggerhead mtDNA lineages were observed in both Atlantic-Mediterranean and Indian-Pacific samples. We attribute this aspect of phylogeographic structure in Caretta caretta to recent interoceanic gene flow, probably mediated by the ability of this temperate-adapted species to utilize habitats around southern Africa. These results demonstrate how differences in the ecology and geographic ranges of marine turtle species can influence their comparative global population structures.