Polygenic inheritance of resistance to Cacopsylla pyri in a Pyrus communis × P. ussuriensis progeny is explained by three QTLs involving an epistatic interaction

Publication Overview
TitlePolygenic inheritance of resistance to Cacopsylla pyri in a Pyrus communis × P. ussuriensis progeny is explained by three QTLs involving an epistatic interaction
AuthorsN/A
TypeJournal Article
Journal NameTree Genetics & Genomes
Volume12
Year2016
Page(s)108
CitationPerchepied L, Guérif P, Ravon E, Denancé C, Laurens F, Robert P, Bouvier L, Lespinasse Y, Durel CE. Polygenic inheritance of resistance to Cacopsylla pyri in a Pyrus communis × P. ussuriensis progeny is explained by three QTLs involving an epistatic interaction. Tree Genetics & Genomes. 2016 12: 108.

Abstract

Pear psylla (Cacopsylla pyri) causes severe damage on European pear cultivars, resulting in high yield losses. Its control has become difficult since it developed resistance to a wide range of pesticides, while the number of authorized molecules for pest control has decreased. Identifying pear psylla resistance factors should help breeding new resistant pear cultivars. We analyzed the quantitative resistance to psylla inherited from the genotype NY 10355 derived from Pyrus ussuriensis. Quantitative trait locus (QTL) analysis was carried out after counting the number of nymphs and estimating the nymphal development rate using a free-choice test performed on a large segregating progeny. We mapped two new loci for pear psylla resistance on linkage groups LG01 and LG04 of NY 10355 and confirmed the QTL previously detected on LG17. A strong epistatic interaction between the two QTLs detected on LG01 and LG17 appeared to be a major factor controlling the psylla infestation in the genotype NY 10355.
Projects
This publication contains information about 1 projects:
Project NameDescription
pear-psylla_resistance-Durel-2016
Features
This publication contains information about 9 features:
Feature NameUniquenameType
Mdo.chr1.24Mdo.chr1.24genetic_marker
NB126aNB126agenetic_marker
MEST120MEST120genetic_marker
resistance to Cacopsylla pyriqRCP.AN-LG1QTL
resistance to Cacopsylla pyriqRCP.AN-LG4QTL
resistance to Cacopsylla pyriqRCP.AN-LG17QTL
resistance to Cacopsylla pyriqRCP.AN-LG1.2QTL
resistance to Cacopsylla pyriqRCP.AN-LG4.2QTL
resistance to Cacopsylla pyriqRCP.AN-LG17.2QTL
Featuremaps
This publication contains information about 1 maps:
Map Name
Pear-AN-F1