Genetic analysis of salt tolerance in a progeny derived from the citrus rootstocks Cleopatra mandarin and trifoliate orange

Publication Overview
TitleGenetic analysis of salt tolerance in a progeny derived from the citrus rootstocks Cleopatra mandarin and trifoliate orange
AuthorsRaga V, Intrigliolo DS, Bernet GP, Carbonell EA, Asins MJ
TypeJournal Article
Journal NameTree Genetics & Genomes
Volume12
Year2016
Page(s)34
CitationRaga V, Intrigliolo DS, Bernet GP, Carbonell EA, Asins MJ. Genetic analysis of salt tolerance in a progeny derived from the citrus rootstocks Cleopatra mandarin and trifoliate orange. Tree Genetics & Genomes. 2016; 12:34.

Abstract

A total of 60 traits that could be related to salt tolerance were genetically analyzed using nucellar plants as repetitions of apomictic hybrids in a reference population derived from two common citrus rootstocks, Cleopatra mandarin (salt tolerant) and trifoliate orange (salt sensitive), in two experiments differing in duration (1 versus 3 years) [NaCl] (30 versus 25 mM) and environmental control (greenhouse versus screenhouse). In both experiments, the trifoliate parent always showed less aerial vegetative growth than Cleopatra, and under salinity, the trifoliate parent showed higher Na+ and Cl− leaf concentrations than the salt-tolerant parent. Salinity affected the relationships among traits, particularly those involving leaf water potential; leaf concentrations of Cl−, K+, B and Fe; and root [Na+]. Most traits showed heritabilities below 0.6, and their quantitative trait locus (QTL) analyses were carried out using three mapping procedures to obtain complementary genetic information on trait inheritance. A total of 98 QTLs were detected by interval mapping and multiple QTL mapping procedures. Fresh and dried weights of the leaf, studied in both experiments, showed common QTLs, remarking their repeatability. A cluster of QTLs governing plant vigour and leaf boron concentration pointed a genomic region in linkage group 3 as the most relevant one to improve salt tolerance using the Cleopatra parent as donor. Besides, a QTL genotype in linkage group 7, associated with the smallest leaf water potential and defoliation index under salinity, corresponded to the highest leaf [Na+] and the largest leaf area, suggesting the presence of a putative tissue salt tolerance QTL.
Features
This publication contains information about 187 features:
Feature NameUniquenameType
Aluminum concentrationqALCONC.Cleopatra/P.trifoliata.LG10+5b.RootQTL
11FrRv11FrRvgenetic_marker
15R15Rgenetic_marker
24R24Rgenetic_marker
3F3R3F3Rgenetic_marker
3F4R3F4Rgenetic_marker
42C42Cgenetic_marker
44C44Cgenetic_marker
4R4R4R4Rgenetic_marker
520AR520ARgenetic_marker
5F4R5F4Rgenetic_marker
5F5R5F5Rgenetic_marker
5F6R5F6Rgenetic_marker
5R4R5R4Rgenetic_marker
6F5R6F5Rgenetic_marker
6F6R6F6Rgenetic_marker
AcuaporAcuaporgenetic_marker
AGG9AGG9genetic_marker
ATC09ATC09genetic_marker
C1C1genetic_marker
C11iC1rtC11iC1rtgenetic_marker
C1iC8rtC1iC8rtgenetic_marker
C2.1C2.1genetic_marker
C2iC1iC2iC1igenetic_marker
C8.1C8.1genetic_marker

Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
Citrus-Element_Concentration-Raga-2016
Featuremaps
This publication contains information about 2 maps:
Map Name
Citrus-Cleopatra/P.trifoliata-Cleopatra-F1-2016
Citrus-Cleopatra/P.trifoliata-P.trifoliata-F1-2016
Stocks
This publication contains information about 4 stocks:
Stock NameUniquenameType
CleopatraCleopatraaccession
FlyingDragonFlyingDragonaccession
RichRichaccession
Cleopatra/P.trifoliataCleopatra/P.trifoliatapopulation
Properties
Additional details for this publication include:
Property NameValue
DOI10.1007/s11295-016-0991-1
URLhttp://link.springer.com/article/10.1007/s11295-016-0991-1