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
P. betulifoliaPI 540990accession
P. betulifoliaPI 540989accession
P. betulifoliaPI 540965accession
P. betulifoliaPI 540991accession
P. betulifoliaPI 541002accession
P. betulifolia 3PI 540949accession
P. betulifolia OSU-3PI 540969accession
P. betulifolia OSU-3 seedling API 540968accession
P. calleryanaPI 541077accession
P. calleryana hybridPI 541794accession
P. calleryana PC-5 (non-typical)PI 617513accession
P. calleryana PC-7 (hybrid)PI 617514accession
P. calleryana PC-7 (hybrid)PI 617515accession
P. hybridPI 541795accession
P. hybridPI 541796accession
P. hybrid (calleryana)PI 541792accession
P. hybrid from MillikanPI 541793accession
P. calleryana OSU-7PI 541057accession
OPR-195 P. calleryana 6 OPPI 541076accession
P. calleryana OSU-8PI 541058accession
P. calleryana OSU-9PI 541059accession
Besi de La MottePI 541131accession
Sucre VertePI 541269accession
Vicar of WinkfieldPI 449288accession
Early Green SugarPI 541337accession