Evolutionary dynamics of autosomal-heterosomal rearrangements in a multiple-X chromosome system of tiger beetles (Cicindelidae) |
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| Authors: | José Galián Sónia JR Proença Alfried P Vogler |
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| Affiliation: | 1.área de Biología Animal, Departamento de Zoología y Antropología Física,Universidad de Murcia,Murcia,Spain;2.Centro de Biologia Ambiental/Departamento de Zoologia e Antropologia, Faculdade de Ciências,Universidade de Lisboa,Lisboa,Portugal;3.Department of Entomology,Natural History Museum,London,UK;4.Department of Biology,Imperial College London,Ascot,UK |
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| Abstract: | Background Genetic systems involving multiple X chromosomes have arisen repeatedly in sexually reproducing animals. Tiger beetles (Cicindelidae) exhibit a phylogenetically ancient multiple-X system typically consisting of 2–4 X chromosomes and a single Y. Because recombination rates are suppressed in sex chromosomes, changes in their numbers and movement of genes between sex chromosomes and autosomes, could have important consequences for gene evolution and rates of speciation induced by these rearrangements. However, it remains unclear how frequent these rearrangements are and which genes are affected. |
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