{"id":"INTADig_96a301c0f3c5e8397a4dac7d0119a256","dc:title":"Progeny sampled and genotyped from mother trees for the study \"Extensive pollen flow in a natural fragmented population of Patagonian cypress Austrocedrus chilensis\" [Conjunto de datos]","dc:creator":"Marchelli, Paula","dc:date":"2024","dc:description":["La poblaci\u00f3n analizada est\u00e1 ubicada dentro de la Estancia San Ram\u00f3n, aproximadamente 30 km al este de la ciudad de San Carlos de Bariloche (entre los 40\u00b0 55\u2019 27\u2019\u2019 y los 41\u00b0 12\u2019 19\u2019\u2019 de latitud Sur; y los 70\u00b0 55\u2019 12\u2019\u2019 y los 71\u00b0 09\u2019 16\u2019\u2019 de longitud oeste.","Habitat fragmentation might significantly affect mating and pollen dispersal patterns in plant populations, contributing to the decline of remnant populations. However, wind-pollinated species are able to disperse pollen at longer distances after opening of the canopy. Our objectives were to characterize the mating system parameters and to estimate the average distance of effective pollen dispersal in the windpollinated conifer Austrocedrus chilensis. We sampled 19 \u201cmother trees,\u201d 200 progeny, and 81 additional adults (both male and female), in a fragmented population at the Argentinean Patagonian steppe. We registered the spatial positions of individuals and genotyped all samples with five microsatellite markers. We found a high genetic diversity, a moderated rate of biparental inbreeding (tm\u2212ts=0.105), and a complete absence of correlated paternity (rp=\u22120.015). The effective number of pollen donors contributing to a single mother (Nep) was 13.9. Applying TWOGENER, we estimated a low but significant differentiation among the inferred pollen pools (\u03a6FT=0.036, p=0.001) and a very large average pollen dispersal distance (d=1,032.3 m). The leptokurtic distribution (b=0.18) presumes a potential for even larger dispersal distances. The high genetic diversity, the mating patterns, and the extensive pollen dispersal presume that habitat fragmentation did not have a negative impact on pollen movement in this population of A. chilensis. Genetic connectivity among fragmented populations scattered in the Patagonian region is possible, and we stress the need of management policies at the landscape level.","EEA Bariloche"],"dc:format":["application\/vnd.ms-excel"],"dc:language":["spa"],"dc:type":"dataset","dc:subject":["Austrocedrus Chilensis","Flujo Gen\u00e9tico","Sistemas de Apareamiento","Polinizaci\u00f3n por el Viento","Gene Flow","Mating Systems","Wind Pollination","Patagonian Cypress","TWOGENER","Pollen Dispersal"],"dc:coverage":["San Carlos de Bariloche .......... (inhabited place) (World, South America, Argentina, R\u00edo Negro)","1019987","ARG","start=2010; end=2011"],"dc:rights":["info:eu-repo\/semantics\/openAccess","http:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/","Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)"],"dc:relation":["info:eu-repo\/grantAgreement\/CONICET\/PIP\/5451\/AR.Ciudad de Aut\u00f3noma de Buenos Aires","info:eu-repo\/semantics\/reference\/hdl\/20.500.12123\/4062","info:eu-repo\/semantics\/reference\/doi\/10.1007\/s11295-014-0775-4"],"dc:identifier":"https:\/\/repositoriosdigitales.mincyt.gob.ar\/vufind\/Record\/INTADig_96a301c0f3c5e8397a4dac7d0119a256"}