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090 _aB-16991
245 1 0 _aA comparison of patterns of genetic structure in two co-occurring Agave species (Asparagaceae)that differ in the patchiness of their geographical distributions and cultivation histories
490 0 _vBotanical Journal of the Linnean Society, 186(3), p.361-373, 2018
520 3 _aSpatial genetic structure in plants can be affected by continuity of geographical distribution, cultivation history, pollination and seed dispersal mechanisms. Here, we examined the relative effects of these factors on the genetic structure of Agave palmeri and A. parryi, which share similar pollination syndromes and seed dispersal mechanisms but differ in the continuity of their distributions and cultivation history. Agave parryi has a patchy distribution and was cultivated by Native Americans, whereas A. palmeri has a more continuous distribution and no documented history of cultivation. We sampled populations of each species in their North American ranges, genotyped individuals with microsatellite loci and analysed patterns of genetic structure. No genetic structuring was detected in A. palmeri, but A. parryi formed three distinct genetic clusters, corresponding to geographical locations. One genetic cluster of A. parryi contained populations from lower elevations and had lower levels of genetic diversity, probably indicating anthropogenic origins. We conclude that continuity of distribution, pollinators and cultivation history all may affect patterns of genetic connectivity.
650 1 4 _aAGAVE PALMERI
650 1 4 _aAGAVE PARRYI
650 1 4 _aANTHROPOGENIC ORIGIN
650 1 4 _aGENETIC DIVERSITY
650 1 4 _aMICROSATELLITES
650 1 4 _aPOLLINATOR
650 1 4 _aSKY ISLANDS
650 1 4 _aSPECIES DISTRIBUTIONS
700 1 2 _aLindsay, D.L.
700 1 2 _aSwift, J.F.
700 1 2 _aLance, R.F.
700 1 2 _aEdwards, C.E.
856 4 0 _uhttps://drive.google.com/file/d/1TRuladjijF6YSstzgpUJcQTIZch_ucdd/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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