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:
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Anderson (Andy)PI 541533accession
Harvest Queen (HW 602)PI 541203accession
HW 600 (Harrow, Ontario)PI 541339accession
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Loreli's FavoritePI 693214accession
Lucy DukePI 541223accession
Nijisseiki x D'AnjouPI 617528accession
P. nivalis (hybrid) - Yugoslavia - compact habitPI 541745accession
PeterPI 617631accession
PhilipPI 641283accession
Poire d'AnisPI 617644accession
Poite BerringerPI 617538accession
Saint GillesPI 131136accession
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SimonPI 617633accession
Tarusa Crimson (=Tamared)PI 617643accession
Triomphe de ViennePI 541275accession
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Vanovskaya 84-2 - TurkmenistanPI 665803accession
Vineland 29018PI 145821accession
Wilder EarlyPI 541283accession
AniversareaPI 483403accession
RepublicaPI 617546accession