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
Anjou - NaumesPI 541365accession
Anjou - Pine Grove MutantPI 617622accession
Anjou - RussetPI 541258accession
Anjou - StripedPI 637999accession
Louise Bonne d'Avranches (L.B. de Jersey)PI 541502accession
SheldonPI 541503accession
Delices d'AvrilPI 541171accession
Le Nain Vert (Genetic Dwarf)PI 322035accession
Epine de MaiPI 290783accession
Romania 17-4/5-32PI 541969accession
Mariette de MillepiedsPI 255615accession
Belle de BeugnyPI 541125accession
Roi Charles de WurttembergPI 541253accession
Beurré Phillippe DelfossePI 541149accession
LakewoodPI 617547accession
PattenPI 541241accession
FamePI 617534accession
MooersPI 541314accession
Comte de ChambordPI 212579accession
HesslePI 541485accession
Lieutenant PoidevinPI 541216accession
Success de la MeillerayePI 541268accession
Florida 58-45PI 617666accession
HL-III-2/79PI 691233accession