combining phylogeography with distribution modeling multiple pleistocene range expansions in a parthenogenetic gecko from the australian arid zonephylogeography结合分布建模中的多个更新世范围扩张孤雌生殖的壁虎从澳大利亚干旱地带.pdfVIP

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combining phylogeography with distribution modeling multiple pleistocene range expansions in a parthenogenetic gecko from the australian arid zonephylogeography结合分布建模中的多个更新世范围扩张孤雌生殖的壁虎从澳大利亚干旱地带.pdf

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combining phylogeography with distribution modeling multiple pleistocene range expansions in a parthenogenetic gecko from the australian arid zonephylogeography结合分布建模中的多个更新世范围扩张孤雌生殖的壁虎从澳大利亚干旱地带

Combining Phylogeography with Distribution Modeling: Multiple Pleistocene Range Expansions in a Parthenogenetic Gecko from the Australian Arid Zone 1¤ 2 3 1 Jared L. Strasburg *, Michael Kearney , Craig Moritz , Alan R. Templeton 1 Department of Biology, Washington University, St. Louis, Missouri, United States of America, 2 Department of Zoology and Centre for Environmental Stress and Adaptation Research, The University of Melbourne, Parkville, Victoria, Australia, 3 Museum of Vertebrate Zoology, University of California at Berkeley, Berkeley, California, United States of America Phylogenetic and geographic evidence suggest that many parthenogenetic organisms have evolved recently and have spread rapidly. These patterns play a critical role in our understanding of the relative merits of sexual versus asexual reproductive modes, yet their interpretation is often hampered by a lack of detail. Here we present a detailed phylogeographic study of a vertebrate parthenogen, the Australian gecko Heteronotia binoei, in combination with statistical and biophysical modeling of its distribution during the last glacial maximum. Parthenogenetic H. binoei occur in the Australian arid zone and have the widest range of any known vertebrate parthenogen. They are broadly sympatric with their sexual counterparts, from which they arose via hybridization. We have applied nested clade phylogeographic, effective migration, and mismatch distribution analyses to mitochondrial DNA (mtDNA) sequences obtained for 319 individuals sampled throughout the known geographic ranges of two parthenogenetic mitochondrial lineages. These analyses provide strong evidence for past range expansion events from west to east across the arid zone, and for continuing eastward range expansion. Parthenogen formation and range expansion events date to the late Pleistocene, with one lineage expanding