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
B-37 (P. communis) - UkrainePI 322711accession
Bergamotte Arsene SannierPI 136620accession
Beurré DumontPI 541142accession
Beurré SixPI 617675accession
Domestic PearPI 541437accession
Good ChristianPI 541712accession
Illinois 80E-1 (Illinois selection from Russian seed)PI 617607accession
India NIC 19388PI 693212accession
JubileinaiaPI 292376accession
Laxton's SatisfactionPI 127041accession
Norhausen Forelle (Nordhäuser Forellenbirne)PI 172495accession
OliaPI 143979accession
P. communisPI 541389accession
Red SilkPI 688153accession
RX 274PI 279940accession
Severyanka KzasroshokayaPI 654957accession
SIM 103-1 - CanadaPI 654941accession
Sur Tangoo (red pear)PI 693210accession
Suzette de BavayPI 541270accession
TsarigradkaPI 189686accession
unknownPI 541315accession
Waite (=Canner)PI 66131accession
Precoce de TrevouxPI 279338accession
USDA No. 463PI 541276accession
96.FI.12 (P. communis rootstock clone)PI 688191accession