Reconstruction of the Largest Pedigree Network for Pear Cultivars and Evaluation of the Genetic Diversity of the USDA-ARS National Pyrus Collection.

Publication Overview
TitleReconstruction of the Largest Pedigree Network for Pear Cultivars and Evaluation of the Genetic Diversity of the USDA-ARS National Pyrus Collection.
AuthorsMontanari S, Postman J, Bassil NV, Neale DB
TypeJournal Article
Journal NameG3 (Bethesda, Md.)
CitationMontanari S, Postman J, Bassil NV, Neale D. Reconstruction of the largest pedigree network for pear cultivars and evaluation of the genetic diversity of the USDA-ARS national Pyrus collection. G3. 2020; 10(9):3285-3297.


The USDA-ARS National Clonal Germplasm Repository (NCGR) in Corvallis, Oregon, maintains one of the world's largest and most diverse living Pyrus collection. A thorough genetic characterization of this germplasm will provide relevant information to optimize the conservation strategy of pear biodiversity, support the use of this germplasm in breeding, and increase our knowledge of Pyrus taxonomy, evolution, and domestication. In the last two decades simple sequence repeat (SSR) markers have been used at the NCGR for cultivar identification and small population structure analysis. However, the recent development of the Applied Biosystems™ Axiom™ Pear 70K Genotyping Array has allowed high-density single nucleotide polymorphism (SNP)-based genotyping of almost the entire collection. In this study, we have analysed this rich dataset to discover new synonyms and mutants, identify putative labelling errors in the collection, reconstruct the largest pear cultivar pedigree and further elucidate the genetic diversity of Pyrus.

This publication contains information about 1 projects:
Project NameDescription
Pyrus NCGR collection SNP genotyping dataPyrus NCGR collection SNP genotyping data
This publication contains information about 1,570 stocks:
Stock NameUniquenameType
HortelletPI 206610accession
Marguerite MarillatPI 541229accession
Djebel GoutavaPI 324121accession
Laxton's SuperbPI 541543accession
Morettini 113PI 318869accession
Williams Precoce MorettiniPI 279341accession
SierraPI 541348accession
WillardPI 541356accession
Autumn RedPI 637985accession
Beurré CapiaumontPI 104532accession
Doyenne GrisPI 541335accession
El DoradoPI 541388accession
ThornleyPI 541274accession
Winkleman (= El Dorado?)PI 541357accession
Beurré AugustePI 541329accession
MorganPI 617549accession
PetersbirnePI 130991accession
Birleshik 84-1 - TurkmenistanPI 693204accession
Domestic Pear (OSU Seedling B) - looks like BoscPI 541450accession
Lantai JululiPI 654949accession
MarquezaPI 183962accession
SirrinePI 541349accession
Untoasa de GeoagiuPI 617652accession
Santa MariaPI 295095accession
B-13 (Bartlett seedling - Virus Indicator)PI 541439accession