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
Angelica Di SaonaraPI 541326accession
Pautalia (=Jubileer D'ar)PI 392321accession
QR 708-12 (P. communis rootstock clone)PI 688125accession
QR 708-2 (P. communis rootstock clone)PI 617680accession
QR 708-36 (P. communis rootstock clone)PI 688099accession
MagnessPI 541299accession
WarrenPI 541448accession
DevoePI 541172accession
DoinaPI 617544accession
EarlibritePI 617563accession
OranzhevajaPI 617612accession
Aromata di BistritaPI 617545accession
Domestic pear - Ontario SelectionPI 430890accession
Rosu Tamiios de BristritaPI 352658accession
TE-1839 (Czech Republic)PI 665795accession
OPR-262 P. betulifoliaPI 540984accession
P. betulifoliaPI 541004accession
P. betulifolia OSU-1PI 540966accession
OPR-259 P. betulifoliaPI 540981accession
OPR-260 P. betulifoliaPI 540982accession
OPR-261 P. betulifoliaPI 540983accession
OPR-263 P. betulifoliaPI 540985accession
OPR-264 P. betulifoliaPI 540986accession
OPR-265 P. betulifoliaPI 540987accession
OPR-266 P. betulifoliaPI 540988accession