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. ussuriensis 'Primorski Sour' - Khabarovsk sdlg. 1PI 637995accession
Winioska-SaskaPI 506377accession
KikusuiPI 228014accession
ShinkoPI 352635accession
ShinseihoPI 352638accession
YakumoPI 224089accession
ChojuroPI 97347accession
KimizukawasePI 352633accession
Admiral GervaisPI 255605accession
Madame du BallettPI 231810accession
Jarve SeemikPI 665810accession
N 217-27.12 (rootstock selection)PI 665801accession
SarajkaPI 502167accession
Ranniaia Mleevskaia (Mleevskaya Rannaya)PI 292377accession
MednikPI 483399accession
HendersonPI 617664accession
India IC 20818PI 691239accession
India NIC 20814PI 665807accession
Josephine de MalinesPI 200378accession
Bergamote Tardive de GanzelPI 279328accession
P. syriaca No. 1 - SyriaPI 541983accession
Barillet DeschampPI 541122accession
Senateur BellePI 541263accession
Madame GillekinsPI 137111accession
Fin de SieclePI 541510accession