Reproductive Isolation in Sonoran Desert Drosophila.
نویسندگان
چکیده
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منابع مشابه
Historical vicariance and postglacial colonization effects on the evolution of genetic structure in Lophocereus, a Sonoran Desert columnar cactus.
Distinguishing the historical effects of gene migration and vicariance on contemporary genetic structure is problematic without testable biogeographic hypotheses based on preexisting geological and environmental evidence. The availability of such hypotheses for North America's Sonoran Desert has contributed to our understanding of the effect of historical vicariance and dispersal events on the ...
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1. We characterized year-round microclimate conditions (temperature and humidity) in and around necrotic cacti of the Sonoran Desert of southwestern North America. Necrotic cacti serve as host plants for four endemic species of Drosophila. 2. Flies in the field were exposed to high and variable temperatures, sometimes ranging between o5 C to >40 C in a single 24-h period. Habitat temperatures o...
متن کاملFlies across the water: genetic differentiation and reproductive isolation in allopatric desert Drosophila.
Between sister species of Drosophila, both pre- and postzygotic reproductive isolation commonly appear by the time a Nei's genetic distance of 0.5 is observed. The degree of genetic differentiation present when allopatric populations of the same Drosophila species exhibit incipient reproductive isolation has not been systematically investigated. Here we compare the relationship between genetic ...
متن کاملPhylogeography of the Cactophilic Drosophila and Other 4 Arthropods Associated with Cactus Necroses in the 5 Sonoran Desert 6
Studies on the population genetics, phylogenetic relationships, systematics and 16 evolution of arthropods that inhabit necrotic tissue of cacti in the Sonoran Desert of North 17 America are reviewed. These studies have focused upon several species of insects (orders 18 Diptera and Coleoptera) and arachnids (order Pseudoscorpiones). For most taxa studied, 19 little genetic structure and high di...
متن کاملPhylogeography of the Cactophilic Drosophila and Other Arthropods Associated with Cactus Necroses in the Sonoran Desert
Studies on the population genetics, phylogenetic relationships, systematics and evolution of arthropods that inhabit necrotic tissue of cacti in the Sonoran Desert of North America are reviewed. These studies have focused upon several species of insects (orders Diptera and Coleoptera) and arachnids (order Pseudoscorpiones). For most taxa studied, little genetic structure and high dispersal abil...
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عنوان ژورنال:
- Evolution; international journal of organic evolution
دوره 37 3 شماره
صفحات -
تاریخ انتشار 1983