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
Doyenne du Comice - Crimson GemPI 541535accession
Doyenne du Comice - Regal RedPI 541534accession
Doyenne du Comice - SpurPI 352632accession
Doyenne du Comice - Taylor's GoldPI 688152accession
Doyenne GoubaultPI 541176accession
Duchesse de Bordeaux (= Beurré Perrault)PI 279330accession
Eva BaltetPI 541186accession
Henri DesportesPI 541206accession
LukavanskiPI 282974accession
Madame SoulangesPI 123968accession
Notaire Lepin (= Doyenne George Boucher)PI 541235accession
Onondaga (VanElverdinghe source)PI 688159accession
PertusatiPI 617636accession
President DrouardPI 279339accession
President LoutreulPI 131135accession
Triomphe de TourainePI 137080accession
Unknown P. communis selection - Comice likePI 541433accession
Grusha ot Nagorskiego (=Grusza od ...)PI 483371accession
Jeanne d'ArcPI 541553accession
Lajre (3x)PI 295092accession
B-11PI 437066accession
OH 50 fire blight resistant rootstockPI 541238accession
OHxF 1PI 541408accession
OHxF 2PI 541413accession
OHxF 4PI 541409accession