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
Unknown Cultivar (=Bartlett type but round)PI 541961accession
Louis PasteurPI 260159accession
Winter ColePI 129643accession
Hall 20PI 617551accession
Nelis x P. betulifoliaPI 541777accession
Nelis x P. betulifoliaPI 541800accession
TennosuiPI 665750accession
Beurré d'AvrilPI 136621accession
Duchesse de BrissacPI 541181accession
Le BrunPI 263682accession
President Osmonville 40PI 264197accession
Doyenne Flon AinePI 255610accession
Kustendil No. 510PI 392324accession
Remy ChatenayPI 541550accession
Royale VendeePI 541257accession
Le LectierPI 260158accession
Madame Andre LeroyPI 541224accession
President DeviolainePI 541517accession
Beurré DillyPI 264192accession
Allexandrine DouillardPI 541114accession
Belle GuerandaisePI 322034accession
Beurré FouquerayPI 541143accession
Beurré SuperfinPI 541150accession
Docteur DesportesPI 541173accession
Doyenne du ComicePI 271658accession