000			02727nab a22003857a 4500
003			EC-PaCDF
005			20210526082317.0
008			160810t20152015xxu|||||||||||||||||eng||
040			_aEC-PaCDF _bspa _cEC-PaCDF
041			_aeng
082	0	4	_a595.44 _223
100	1		_aDe Busschere, Charlotte. _9500 _eautor
245	1	0	_aInter and intra island introgression in a wolf spider radiation from the Galapagos and its implications for parallel evolution / _cCharlotte De Busschere, Steven Marcel Van Belleghem and Frederik Hendrickx.
260	3		_c2015.
300			_a: 73-84 p.
520			_aParallel radiations within island systems are often assumed to follow a simple scenario in which single colonization events are followed by in situ adaptive divergence. However, subsequent gene exchange after the initial colonization and during the divergence process might have important evolutionary impacts on species radiations. Gene exchange among ecologically similar species from different islands may lead to introgression of adaptive genetic variation and influence the parallel divergence process. In this study, we estimate levels of gene exchange within a wolf spider radiation of the genus Hogna Simon, 1885, from the Galápagos, wherein habitat specialization into ‘high elevation’ and ‘coastal dry’ species apparently evolved repeatedly on two islands. By using a multilocus approach we show that low levels of inter-island and relatively higher levels of intra island introgression shaped genetic variation in this species complex. Using these estimates, we demonstrate by means of a coalescence simulation that under these inter- and intra-island migration rates parallel evolution most likely evolves by introgression of adaptive alleles among islands, rather than through independent mutations despite the close genetic relationship of species within islands. As species phylogenies within radiations are frequently used to infer the divergence pattern, even relatively low levels of interspecific gene flow should not be neglected when interpreting parallel trait evolution.
546			_aInglés
653			_aMigration
653			_aMigración
653			_aHogna
653			_aHogna
653			_aMultilocus
653			_aMultilocus
653			_aGene exchange
653			_aIntercambio de genes
653			_aCoalescence
653			_aFusión
653			_aIntrogression
653			_aIntrogresión
700	1		_aVan Belleghem, Steven Marcel. _95577 _eautor
700	1		_aHendrickx, Frederik. _9501 _eautor
773	0		_tMolecular Phylogenetics and Evolution _gVol. 84 (Jan 2015), p. 73-84.
856	4	0	_uhttp://dx.doi.org/10.1016/j.ympev.2014.11.004
942			_2ddc _cARTICLE
999			_c12687 _d12687