Genetic Diversity And Population Structure Of The Brachiaria Brizantha Germplasm

dc.creatorVigna B.B.Z.
dc.creatorJungmann L.
dc.creatorFrancisco P.M.
dc.creatorZucchi M.I.
dc.creatordo Valle C.B.
dc.creatorde Souza A.P.
dc.date2011
dc.date2015-06-30T20:22:59Z
dc.date2015-11-26T14:48:45Z
dc.date2015-06-30T20:22:59Z
dc.date2015-11-26T14:48:45Z
dc.date.accessioned2018-03-28T21:59:36Z
dc.date.available2018-03-28T21:59:36Z
dc.identifier
dc.identifierTropical Plant Biology. , v. 4, n. 03/04/15, p. 157 - 169, 2011.
dc.identifier19359756
dc.identifier10.1007/s12042-011-9078-1
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-82355173469&partnerID=40&md5=ceae1bc9e5da8310df7214114060b136
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/107733
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/107733
dc.identifier2-s2.0-82355173469
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1253699
dc.descriptionBrachiaria brizantha (Hochst. ex A. Rich.) Stapf. (syn. Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster) is a species used primarily as forage in tropical America and Southeast Asia. B. brizantha has been extensively researched since the 1980s with the initiation of the Tropical Forages Breeding Program conducted by the Brazilian Agricultural Research Corporation (Empresa Brasileira de Pesquisa Agropecuária; EMBRAPA), holding one of the largest germplasm collections in the world. This work has identified 15 new microsatellite markers for this species, which have been used in addition to five previously reported markers, to estimate the genetic similarities among 172 accessions and six cultivars of this species. Similarity index values ranged from 0.40 to 1.00. Two duplications were found in the germplasm. A Bayesian analysis performed using the STRUCTURE 2.3.3 program revealed the presence of three clusters with different allelic pools. This analysis is valuable for the performance of crosses to explore heterosis; however, the mode of reproduction of the accessions and ploidy barriers must be observed for effective exploration. A grouping analysis using the neighbor-joining method was consistent with the STRUCTURE analysis, and a combination approach suggested that this germplasm collection does not exhibit considerable genetic variability despite the presence of three distinct allelic pools. The lack of correlation between the genetic and geographic distances is also discussed. © 2011 Springer Science+Business Media, LLC.
dc.description4
dc.description03/04/15
dc.description157
dc.description169
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dc.languageen
dc.publisher
dc.relationTropical Plant Biology
dc.rightsfechado
dc.sourceScopus
dc.titleGenetic Diversity And Population Structure Of The Brachiaria Brizantha Germplasm
dc.typeArtículos de revistas


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