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
Burford PearPI 641291accession
Campas No.2PI 541706accession
Duchesse de MouchyPI 541182accession
Harrow DelightHarrowDelightaccession
Harrow Delight (HW 603)PI 541431accession
Harrow Sweet (HW 609) - IPR expires 2015PI 617562accession
HermitPI 617565accession
India IC 20821PI 688146accession
Khan Tangoo I (great pear)PI 654939accession
Kharnak I (donkey pear)PI 665794accession
Kharnak II (donkey pear)PI 688076accession
KiefferPI 541714accession
Nak I - PakistanPI 688155accession
OoharabeniPI 617674accession
OPR-005 OHxF C-44PI 617519accession
Pope (=Bonner)PI 617670accession
Souvenir du CongressPI 617637accession
ThomasPI 617635accession
VaughnPI 617667accession
Latvian API 144311accession
Laxton's ProgressPI 127039accession
Liu Yue Xian (=Liu Yue Shian)PI 637988accession
Romania 8/102 F2-25-6PI 688143accession
P. hondoensisPI 541687accession
P. hondoensisPI 541688accession