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Sleeping with the enemy: introgressive hybridization in two invasive centrarchids
Authors:Genevieve Diedericks  Romina Henriques  Sophie von der Heyden  Olaf L F Weyl  Cang Hui
Institution:1. Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University, Matieland, Stellenbosch, South Africa;2. Evolutionary Genomics Group, Department of Botany and Zoology, Stellenbosch University, Matieland, Stellenbosch, South Africa;3. Section for Marine Living Resources, National Institute of Aquatic Resources, Technical University of Denmark, Lyngby, Denmark;4. DST/NRF Research Chair in Inland Fisheries and Freshwater Ecology, South African Institute for Aquatic Biodiversity (SAIAB), Grahamstown, South Africa;5. Centre for Invasion Biology, South African Institute for Aquatic Biodiversity (SAIAB), Grahamstown, South Africa;6. Centre for Invasion Biology, Department of Mathematical Sciences, Stellenbosch University, Matieland, Stellenbosch, South Africa;7. Mathematical Biosciences Group, African Institute for Mathematical Sciences, Cape Town, South Africa
Abstract:Introgressive hybridization between Micropterus dolomieu and Micropterus salmoides was assessed in their invaded South African range using nine microsatellite markers and two mtDNA gene regions. Although M. dolomieu and M. salmoides are distantly related, indicated by the large uncorrected pairwise distances observed between the two species, mitochondrial introgression and unidirectional admixture was detected.
Keywords:freshwater fish  homoplasy  hybridization  invasive     Micropterus  smallmouth bass
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