The Rvi15 (Vr2) Apple Scab Resistance Locus Contains Three TIR-NBS-LRR Genes

Scab caused by the pathogen Venturia inaequalis is considered the most important fungal disease of cultivated apple (Malus × domestica Borkh.). In all, 16 monogenic resistances against scab have been found in different Malus spp. and some of them are currently used in apple breeding for scab-resista...

Full description

Bibliographic Details
Main Authors: Paolo Galli, Andrea Patocchi, Giovanni Antonio Lodovico Broggini, Cesare Gessler
Format: Article
Language:English
Published: The American Phytopathological Society 2010-05-01
Series:Molecular Plant-Microbe Interactions
Online Access:https://apsjournals.apsnet.org/doi/10.1094/MPMI-23-5-0608
_version_ 1811261364068417536
author Paolo Galli
Andrea Patocchi
Giovanni Antonio Lodovico Broggini
Cesare Gessler
author_facet Paolo Galli
Andrea Patocchi
Giovanni Antonio Lodovico Broggini
Cesare Gessler
author_sort Paolo Galli
collection DOAJ
description Scab caused by the pathogen Venturia inaequalis is considered the most important fungal disease of cultivated apple (Malus × domestica Borkh.). In all, 16 monogenic resistances against scab have been found in different Malus spp. and some of them are currently used in apple breeding for scab-resistant cultivars. However, the self incompatibility and the long generation time of Malus spp. together with the high standards of fruit quality demanded from the fresh market render the breeding of high-quality cultivars in apple a long and expensive task. Therefore, the cloning of disease resistance genes and the use of the cloned genes for the transformation of high-quality apple cultivars could be an approach to solve these drawbacks. We report the construction of a bacterial artificial chromosome (BAC) contig spanning the Rvi15 (Vr2) apple scab resistance locus using two GMAL 2473 BAC libraries. A single BAC clone of the contig was sufficient to span the resistance locus. The BAC clone was completely sequenced, allowing identification of a sequence of 48.6 kb going from the two closest markers (ARGH17 and 77G20RP) bracketing Rvi15 (Vr2). Analysis of the 48.6-kb sequence revealed the presence of three putative genes characterized by a Toll and mammalian interleukin-1 receptor protein nucleotide-binding site leucine-rich repeat structure. All three genes were found to be transcribed.
first_indexed 2024-04-12T19:02:09Z
format Article
id doaj.art-5d44587b761646b291b04f956b2044c8
institution Directory Open Access Journal
issn 0894-0282
1943-7706
language English
last_indexed 2024-04-12T19:02:09Z
publishDate 2010-05-01
publisher The American Phytopathological Society
record_format Article
series Molecular Plant-Microbe Interactions
spelling doaj.art-5d44587b761646b291b04f956b2044c82022-12-22T03:20:07ZengThe American Phytopathological SocietyMolecular Plant-Microbe Interactions0894-02821943-77062010-05-0123560861710.1094/MPMI-23-5-0608The Rvi15 (Vr2) Apple Scab Resistance Locus Contains Three TIR-NBS-LRR GenesPaolo GalliAndrea PatocchiGiovanni Antonio Lodovico BrogginiCesare GesslerScab caused by the pathogen Venturia inaequalis is considered the most important fungal disease of cultivated apple (Malus × domestica Borkh.). In all, 16 monogenic resistances against scab have been found in different Malus spp. and some of them are currently used in apple breeding for scab-resistant cultivars. However, the self incompatibility and the long generation time of Malus spp. together with the high standards of fruit quality demanded from the fresh market render the breeding of high-quality cultivars in apple a long and expensive task. Therefore, the cloning of disease resistance genes and the use of the cloned genes for the transformation of high-quality apple cultivars could be an approach to solve these drawbacks. We report the construction of a bacterial artificial chromosome (BAC) contig spanning the Rvi15 (Vr2) apple scab resistance locus using two GMAL 2473 BAC libraries. A single BAC clone of the contig was sufficient to span the resistance locus. The BAC clone was completely sequenced, allowing identification of a sequence of 48.6 kb going from the two closest markers (ARGH17 and 77G20RP) bracketing Rvi15 (Vr2). Analysis of the 48.6-kb sequence revealed the presence of three putative genes characterized by a Toll and mammalian interleukin-1 receptor protein nucleotide-binding site leucine-rich repeat structure. All three genes were found to be transcribed.https://apsjournals.apsnet.org/doi/10.1094/MPMI-23-5-0608
spellingShingle Paolo Galli
Andrea Patocchi
Giovanni Antonio Lodovico Broggini
Cesare Gessler
The Rvi15 (Vr2) Apple Scab Resistance Locus Contains Three TIR-NBS-LRR Genes
Molecular Plant-Microbe Interactions
title The Rvi15 (Vr2) Apple Scab Resistance Locus Contains Three TIR-NBS-LRR Genes
title_full The Rvi15 (Vr2) Apple Scab Resistance Locus Contains Three TIR-NBS-LRR Genes
title_fullStr The Rvi15 (Vr2) Apple Scab Resistance Locus Contains Three TIR-NBS-LRR Genes
title_full_unstemmed The Rvi15 (Vr2) Apple Scab Resistance Locus Contains Three TIR-NBS-LRR Genes
title_short The Rvi15 (Vr2) Apple Scab Resistance Locus Contains Three TIR-NBS-LRR Genes
title_sort rvi15 vr2 apple scab resistance locus contains three tir nbs lrr genes
url https://apsjournals.apsnet.org/doi/10.1094/MPMI-23-5-0608
work_keys_str_mv AT paologalli thervi15vr2applescabresistancelocuscontainsthreetirnbslrrgenes
AT andreapatocchi thervi15vr2applescabresistancelocuscontainsthreetirnbslrrgenes
AT giovanniantoniolodovicobroggini thervi15vr2applescabresistancelocuscontainsthreetirnbslrrgenes
AT cesaregessler thervi15vr2applescabresistancelocuscontainsthreetirnbslrrgenes
AT paologalli rvi15vr2applescabresistancelocuscontainsthreetirnbslrrgenes
AT andreapatocchi rvi15vr2applescabresistancelocuscontainsthreetirnbslrrgenes
AT giovanniantoniolodovicobroggini rvi15vr2applescabresistancelocuscontainsthreetirnbslrrgenes
AT cesaregessler rvi15vr2applescabresistancelocuscontainsthreetirnbslrrgenes