A linkage map for the hybridising toads Bombina bombina and B. variegata (Anura: Discoglossidae).

作者: B Nürnberger , S Hofman , B Förg-Brey , G Praetzel , A Maclean

DOI: 10.1038/SJ.HDY.6800291

关键词: Hybrid zoneBombina bombinaGenetic markerEvolutionary biologyGeneticsRange (biology)Reproductive isolationQuantitative trait locusBiologyGenetic linkageMicrosatellite

摘要: Stable hybrid zones in which ecologically divergent taxa give rise to a range of recombinants are natural laboratories the genetic basis adaptation and reproductive isolation can be unraveled. One such zone is formed by fire-bellied toads Bombina bombina B. variegata (Anura: Discoglossidae). Adaptations permanent ephemeral breeding habitats, respectively, have shaped numerous phenotypic differences between taxa. All these are, principle, candidates for dissection via QTL mapping. We present here linkage map 28 codominant 10 dominant markers genome. In an F2 cross, that were mainly microsatellites, SSCPs or allozymes mapped 20 groups. Among 40 isolated CA we noted preponderance compound frequently interleaved CA-TA repeats as well striking polarity at 5' end repeats.

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