Construction of genetic linkage map and graphical genotyping of pseudo-backcrossed F2 (BC’2) progeny to introduce a CTV resistance from Poncirus trifoliata (L.) Raf. into Citrus by introgression breeding

Publication Overview
TitleConstruction of genetic linkage map and graphical genotyping of pseudo-backcrossed F2 (BC’2) progeny to introduce a CTV resistance from Poncirus trifoliata (L.) Raf. into Citrus by introgression breeding
AuthorsOhta S, Endo T, Shimada T, Fujii H, Shimizu T, Kita M, Kuniga T, Yoshioka T, Nesumi H, Yoshida T, Omura M
TypeJournal Article
Journal NameTree Genetics & Genomes
Volume11
Year2015
Page(s)797
CitationOhta S, Endo T, Shimada T, Fujii H, Shimizu T, Kita M, Kuniga T, Yoshioka T, Nesumi H, Yoshida T, Omura M. Construction of genetic linkage map and graphical genotyping of pseudo-backcrossed F2 (BC’2) progeny to introduce a CTV resistance from Poncirus trifoliata (L.) Raf. into Citrus by introgression breeding. Tree Genetics & Genomes. 2015; 11:797.

Abstract

Most citrus tristeza virus (CTV) strains infect almost all Citrus species and have caused serious damage on citrus production in many countries. Poncirus trifoliata (trifoliate orange) has a single dominant resistance gene effective against a broad range of CTV strains. P. trifoliata is sexually compatible with Citrus species, and introgression breeding programs have been initiated to introduce the CTV resistance into Citrus. “Kankitsu Chukanbohon Nou 8 Gou” (Nou-8) was developed by crossing Citrus sp. “Kiyomi” with an F1 hybrid derived from Citrus hassaku × P. trifoliata, but it still had undesirable eating traits. In aim to progress marker-assisted introgression breeding for CTV resistance efficiently, we selected 189 DNA markers which could be applied to genotyping for Citrus and P. trifoliata and constructed a genetic linkage map of Nou-8. The map included 189 DNA markers on 10 linkage groups and extended about 722.8 cM in total length. CTV resistance locus was located at 2.4 cM position in linkage group 02_(1), with the same location found when progeny were scored for resistance using an ELISA assay and for DNA marker for CTV resistant (CTV103). Graphical genotypes of Nou-8 and its progeny suggested that (1) 36 % of the chromosome in the BC’2 population were inherited from Nou-8 without any recombination sites, (2) Nou-8 had been already completely substituted by Citrus genotype in two linkage groups, and (3) four of 93 progeny of Nou-8 had recombination sites in the flanking region of the CTV resistance gene locus.
Features
This publication contains information about 3 features:
Feature NameUniquenameType
Vt0032Vt0032genetic_marker
CTV resistanceCTV resistancegenetic_marker
CTWYGA70CTWYGA70genetic_marker
Featuremaps
This publication contains information about 1 maps:
Map Name
Citrus-Citrus_hassaku/FlyingDragon//Kiyomi//Kankitsu_Chukanbohon_Nou_8_Gou/Siamese_Acidless-BC2-2016
Stocks
This publication contains information about 3 stocks:
Stock NameUniquenameType
KankitsuChukanbohonNou8GouKankitsuChukanbohonNou8Goucultivar
SiameseAcidlessSiameseAcidlesscultivar
KankitsuChukanbohonNou8Gou/SiameseAcidlessKankitsuChukanbohonNou8Gou/SiameseAcidlesspopulation
Properties
Additional details for this publication include:
Property NameValue
DOI10.1007/s11295-014-0797-y
URLhttp://link.springer.com/article/10.1007%2Fs11295-014-0797-y