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This work was supported by the Spanish Ministry of Science and Innovation (MCI), the State Research Agency (AEI), and the European Regional Development Fund (FEDER), through the project PostPeachBreed (RTI2018-094176-R) (MCI/AEI/FEDER, UE).

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Cantin, Celia M - Autor (correspondencia)
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Publicaciones > Artículo

Exploring Genome-Wide Diversity in the National Peach (Prunus persica) Germplasm Collection at CITA (Zaragoza, Spain)

Publicado en:Agronomy-Basel. 11 (3): - 2021-01-01 11(3), doi: 10.3390/agronomy11030481

Cantin, Celia M;

Afiliaciones

Agrifood Res & Technol Ctr Aragon CITA, Dept Hort, Zaragoza 50080, Spain - Autor o Coautor
ARAID Fdn, Zaragoza 50080, Spain - Autor o Coautor
CEBAS CSIC, Dept Plant Breeding, Murcia 30100, Spain - Autor o Coautor
Centro de Investigación y Tecnología Agroalimentaria de Aragón - Entidad de origen
European Commission Appeared in source as European Regional Development Fund (FEDER) - Financiador
Fdn Edmund Mach, Res & Innovat Ctr, Ist Agrario San Michele All Adige, I-38010 San Michele All Adige, Italy - Autor o Coautor
IRTA Investigación y Tecnología Agroalimentarias - Entidad de origen
Spanish Government Appeared in source as Spanish Ministry of Science and Innovation (MCI) - Financiador
Spanish Natl Res Council, Dept Pomol, Expt Stn Aula Dei, CSIC, Apdo 13034, Zaragoza 50080, Spain - Autor o Coautor
State Research Agency (AEI) - Financiador
Univ Zaragoza, AgriFood Inst Aragon IA2, CITA, Zaragoza 50080, Spain - Autor o Coautor
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Resúmen

Resúmen: Peach (Prunus persica (L.) Batsch) is one of the most produced and studied stone fruits. Many genetic and genomic resources are available for this species, including a high-quality genome. More recently, a new high-density Illumina peach Single Nucleotide Polymorphism (SNP) chip (9+9K) has been developed by an international consortium as an add-on to the previous 9K array. In the current study, this new array was used to study the genetic diversity and population structure of the National Peach Germplasm Collection of the Agrifood Research and Technology Centre of Aragon (CITA), located in Zaragoza (northern Spain). To accomplish this, 90 peach accessions were genotyped using the new peach SNP chip (9+9K). A total of 9796 SNPs were finally selected for genetic analyses. Through Identity-By-Descent (IBD) estimate analysis, 15 different groups with genetically identical individuals were identified. The genetic diversity and population structure elucidated a possible exchange of germplasm material among regions, mainly in the northern regions of Spain. This study will allow for more efficient management of the National Peach Germplasm Collection by classifying valuable individuals for genetic diversity preservation and will benefit forthcoming Genome-Wide Association Studies (GWAS) of commercially important fruit traits in peach.

Palabras clave: Genetic diversity; Germplasm; Identity-by-descent (ibd); Identity-bydescent (ibd); Peach; Single nucleotide polymorphisms

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