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dc.contributor.authorGarcía-Lor, Andrés
dc.contributor.authorLuro, Francois
dc.contributor.authorOllitrault, Patrick
dc.contributor.authorNavarro, Luis
dc.identifier.citationGarcia-Lor, A., Luro, F., Ollitrault, P., Navarro, L. (2017). Comparative analysis of core collection sampling methods for mandarin germplasm based on molecular and phenotypic data. Annals of Applied Biology, 171(3), 327-339.
dc.description.abstractGene banks have been established to conserve the genetic diversity of crop species. Large germplasm collections lead to management problems (space, maintenance costs, etc.), especially in collections involving species with recalcitrant seeds that must be maintained as growing plants. Core collections (CCs) are thus developed to reduce the size of large germplasm collections while keeping the maximum variability. This also facilitates fine phenotypic evaluation. In this study, several software packages (DARwin, PowerMarker and MSTRAT) and methods (Max length subtree, M strategy, simulated annealing and MinSD) were compared to define a mandarin (Citrus reticulata) CC. One hundred and sixty-seven accessions were sampled from two germplasm collections, which were genotyped with 50 SSR, 24 InDel and 68 single nucleotide polymorphism markers. All the CC obtained were tested for the maintenance of the genetic variability parameters (Ho and He) of the initial collection, the level of linkage disequilibrium (LD) and the phenotypic diversity retention. The Max length subtree function from DARWin seemed to be the most appropriate method for establishing a CC in C. reticulata. It maintained 96.82% of the allelic richness and 17.96% of the size of the initial collection with only 30 accessions. Besides it did not increase the LD (r(2) value) of the initial collection and retained the vast majority of the phenotypic variability. However, a CC with 70 accessions would be more helpful for genetic association studies.
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.titleComparative analysis of core collection sampling methods for mandarin germplasm based on molecular and phenotypic data
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes
dc.entidadIVIACentro de Protección Vegetal y Biotecnología
dc.journal.titleAnnals of Applied Biology

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Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España