{"id":"RDUUNC_03c0c9e0d1f420e320c032d646ac0169","dc:title":"Spatial analysis of molecular variance (SAMOVA) for Berberis trifoliolata populations","dc:creator":"Sosa, Victoria","dc:date":"2017","dc:description":["Here we conduct research to understand the evolutionary history of a shrubby species known as Agarito (Berberis trifoliolata), an endemic species to the Chihuahuan Desert. We identify genetic signatures based on plastid DNA and AFLP markers and perform niche modelling and spatial connectivity analyses as well as niche modelling based on records in packrats to elucidate whether orogenic events such as mountain range uplift in the Miocene or the contraction\/expansion dynamics of vegetation in response to climate oscillations in the Pliocene\/Pleistocene had an effect on evolutionary processes in Agarito. Our results of current niche modelling and palaeomodelling showed that the area currently occupied by Berberis trifoliolata is substantially larger than it was during the Last Interglacial period and the Last Glacial Maximum. Agarito was probably confined to small areas in the Northeastern and gradually expanded its distribution just after the Last Glacial Maximum when the weather in the Chihuahuan Desert and adjacent regions became progressively warmer and drier. The most contracted range was predicted for the Interglacial period. Populations remained in stable areas during the Last Glacial Maximum and expanded at the beginning of the Holocene. Most genetic variation occured in populations from the Sierra Madre Oriental.","Aqu\u00ed realizamos una investigaci\u00f3n para comprender la historia evolutiva de una especie arbustiva conocida como Agarito (Berberis trifoliolata), una especie end\u00e9mica del desierto de Chihuahua. Identificamos firmas gen\u00e9ticas basadas en marcadores de ADN plastidial y AFLP y realizamos an\u00e1lisis de modelado de nicho y de conectividad espacial, as\u00ed como de modelado de nicho basado en registros en packrats para dilucidar si los eventos orog\u00e9nicos como el levantamiento de la cordillera en el Mioceno o la din\u00e1mica de contracci\u00f3n\/expansi\u00f3n de la vegetaci\u00f3n en respuesta a las oscilaciones clim\u00e1ticas en el Plioceno\/Pleistoceno tuvieron un efecto en los procesos evolutivos de Agarito. Nuestros resultados de la modelizaci\u00f3n del nicho actual y de la paleomodelizaci\u00f3n mostraron que el \u00e1rea ocupada actualmente por Berberis trifoliolata es sustancialmente mayor de lo que era durante el \u00faltimo per\u00edodo interglacial y el \u00faltimo m\u00e1ximo glacial. El agarito estaba probablemente confinado en peque\u00f1as zonas del noreste y ampli\u00f3 gradualmente su distribuci\u00f3n justo despu\u00e9s del \u00daltimo M\u00e1ximo Glacial, cuando el clima en el desierto de Chihuahua y las regiones adyacentes se volvi\u00f3 progresivamente m\u00e1s c\u00e1lido y seco. El \u00e1rea de distribuci\u00f3n m\u00e1s contra\u00edda se predijo para el periodo interglaciar. Las poblaciones permanecieron en zonas estables durante el \u00daltimo M\u00e1ximo Glacial y se expandieron a principios del Holoceno. La mayor variaci\u00f3n gen\u00e9tica se produjo en las poblaciones de la Sierra Madre Oriental."],"dc:format":["text\/csv","application\/vnd.ms-excel"],"dc:language":["eng"],"dc:type":"dataset","dc:subject":["Niche modelling","Niche modelling predictions","Last Glacial Maximum","Northeastern","Agarito","Last Interglacial period"],"dc:coverage":["MEX"],"dc:rights":["info:eu-repo\/semantics\/openAccess"],"dc:publisher":"Plos One","dc:relation":["info:eu-repo\/semantics\/reference\/url\/https:\/\/figshare.com\/articles\/dataset\/Spatial_analysis_of_molecular_variance_SAMOVA_for_i_Berberis_trifoliolata_i_populations_\/4610578","info:eu-repo\/semantics\/dataset\/https:\/doi\/10.1371\/journal.pone.0168933.t002"],"dc:identifier":"https:\/\/repositoriosdigitales.mincyt.gob.ar\/vufind\/Record\/RDUUNC_03c0c9e0d1f420e320c032d646ac0169"}