Diversity arrays technology (DArT) marker platforms for diversity analysis and linkage mapping in a complex crop, the octoploid cultivated strawberry (Fragaria × ananassa)

José F. Sánchez-Sevilla, Aniko Horvath, Miguel A. Botella, Amèlia Gaston, Kevin Folta, Andrzej Kilian, Beatrice Denoyes, Iraida Amaya

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Abstract

Cultivated strawberry (Fragaria × ananassa) is a genetically complex allo-octoploid crop with 28 pairs of chromosomes (2n = 8x = 56) for which a genome sequence is not yet available. The diploid Fragaria vesca is considered the donor species of one of the octoploid subgenomes and its available genome sequence can be used as a reference for genomic studies. A wide number of strawberry cultivars are stored in ex situ germplasm collections worldwide but a number of previous studies have addressed the genetic diversity present within a limited number of these collections. Here, we report the development and application of two platforms based on the implementation of Diversity Array Technology (DArT) markers for high-throughput genotyping in strawberry. The first DArT microarray was used to evaluate the genetic diversity of 62 strawberry cultivars that represent a wide range of variation based on phenotype, geographical and temporal origin and pedigrees. A total of 603 DArT markers were used to evaluate the diversity and structure of the population and their cluster analyses revealed that these markers were highly efficient in classifying the accessions in groups based on historical, geographical and pedigree-based cues. The second DArTseq platform took benefit of the complexity reduction method optimized for strawberry and the development of next generation sequencing technologies. The strawberry DArTseq was used to generate a total of 9,386 SNP markers in the previously developed '232' × '1392' mapping population, of which, 4,242 high quality markers were further selected to saturate this map after several filtering steps. The high-throughput platforms here developed for genotyping strawberry will facilitate genome-wide characterizations of large accessions sets and complement other available options.

Original languageEnglish
Article number144960
Pages (from-to)1-22
Number of pages22
JournalPLoS One
Volume10
Issue number12
DOIs
Publication statusPublished - 1 Dec 2015

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Fragaria
Fragaria ananassa
Chromosome Mapping
strawberries
Crops
chromosome mapping
Technology
Genes
crops
Throughput
pedigree
genotyping
Microarrays
Chromosomes
genome
Genome
Pedigree
Fragaria vesca
microarray technology
genetic variation

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Sánchez-Sevilla, José F. ; Horvath, Aniko ; Botella, Miguel A. ; Gaston, Amèlia ; Folta, Kevin ; Kilian, Andrzej ; Denoyes, Beatrice ; Amaya, Iraida. / Diversity arrays technology (DArT) marker platforms for diversity analysis and linkage mapping in a complex crop, the octoploid cultivated strawberry (Fragaria × ananassa). In: PLoS One. 2015 ; Vol. 10, No. 12. pp. 1-22.
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Diversity arrays technology (DArT) marker platforms for diversity analysis and linkage mapping in a complex crop, the octoploid cultivated strawberry (Fragaria × ananassa). / Sánchez-Sevilla, José F.; Horvath, Aniko; Botella, Miguel A.; Gaston, Amèlia; Folta, Kevin; Kilian, Andrzej; Denoyes, Beatrice; Amaya, Iraida.

In: PLoS One, Vol. 10, No. 12, 144960, 01.12.2015, p. 1-22.

Research output: Contribution to journalArticle

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