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
Kustendil No. 980PI 392325accession
Timpurii de DimbovitaPI 693207accession
Ching-Shan LiPI 693203accession
Mian Suan (3x?)PI 665780accession
Ta Mo PanPI 542000accession
BesteverPI 541559accession
Canal PearPI 541158accession
Doyenne du Comice - Crimson Gem #2PI 541536accession
ParagonPI 688179accession
YungenPI 617677accession
Zao SuPI 617653accession
ConcordePI 665740accession
Pyvert (=Vert) (Genetic Dwarf)PI 665782accession
Rogue RedPI 541252accession
Junsko ZlatoPI 617620accession
SampionkaPI 654963accession
Summer Beurré De ArenbergPI 693202accession
Laxton's RecordPI 541540accession
Huyshe's VictoriaPI 280034accession
Eletta MorettiniPI 311714accession
PorporataPI 324135accession
Romania 138-5-22PI 541968accession
Delbard PremierePI 541524accession
P. communis ssp. caucasica - StavropolPI 324028accession
BosargePI 641289accession