GEPHE SUMMARY Print
Gephebase Gene
Entry Status
Published
GepheID
GP00000639
Main curator
Martin
PHENOTYPIC CHANGE
Trait Category
Trait State in Taxon A
Malus x domestica - Sciros
Trait State in Taxon B
Malus x domestica - red-fleshed 91.136 B6-77
Ancestral State
Data not curated
Taxonomic Status
Taxon A
Common Name
apple
Synonyms
Malus communis; Malus pumila auct.; Malus pumila var. domestica; Malus sylvestris var. domestica; Malus x domestica; Pyrus malus; apple; apple tree; cultivated apple; Malus communis Desf.; Malus domestica Borkh., nom. cons. prop.; Malus pumila var. domestica (Borkh.) C.K.Schneid.; Malus sylvestris var. domestica (Borkh.) Mansf.; Pyrus malus L.
Rank
species
Lineage
Show more ... tina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; rosids; fabids; Rosales; Rosaceae; Amygdaloideae; Maleae; Malus
NCBI Taxonomy ID
is Taxon A an Infraspecies?
Yes
Taxon A Description
Malus x domestica - Sciros
Taxon B
Common Name
apple
Synonyms
Malus communis; Malus pumila auct.; Malus pumila var. domestica; Malus sylvestris var. domestica; Malus x domestica; Pyrus malus; apple; apple tree; cultivated apple; Malus communis Desf.; Malus domestica Borkh., nom. cons. prop.; Malus pumila var. domestica (Borkh.) C.K.Schneid.; Malus sylvestris var. domestica (Borkh.) Mansf.; Pyrus malus L.
Rank
species
Lineage
Show more ... tina; Embryophyta; Tracheophyta; Euphyllophyta; Spermatophyta; Magnoliophyta; Mesangiospermae; eudicotyledons; Gunneridae; Pentapetalae; rosids; fabids; Rosales; Rosaceae; Amygdaloideae; Maleae; Malus
NCBI Taxonomy ID
is Taxon B an Infraspecies?
Yes
Taxon B Description
Malus x domestica - red-fleshed 91.136 B6-77
GENOTYPIC CHANGE
Generic Gene Name
MYB1
Synonyms
MdMYBA; MYB10
String
-
Sequence Similarities
-
GO - Biological Process
-
GO - Cellular Component
UniProtKB
Malus domestica
GenebankID or UniProtKB
Presumptive Null
Molecular Type
Aberration Type
Molecular Details of the Mutation
unknown
Experimental Evidence
Authors
Chagné D; Carlisle CM; Blond C; Volz RK; Whitworth CJ; Oraguzie NC; Crowhurst RN; Allan AC; et al. ... show more
Abstract
Integrating plant genomics and classical breeding is a challenge for both plant breeders and molecular biologists. Marker-assisted selection (MAS) is a tool that can be used to accelerate the development of novel apple varieties such as cultivars that have fruit with anthocyanin through to the core. In addition, determining the inheritance of novel alleles, such as the one responsible for red flesh, adds to our understanding of allelic variation. Our goal was to map candidate anthocyanin biosynthetic and regulatory genes in a population segregating for the red flesh phenotypes.

We have identified the Rni locus, a major genetic determinant of the red foliage and red colour in the core of apple fruit. In a population segregating for the red flesh and foliage phenotype we have determined the inheritance of the Rni locus and DNA polymorphisms of candidate anthocyanin biosynthetic and regulatory genes. Simple Sequence Repeats (SSRs) and Single Nucleotide Polymorphisms (SNPs) in the candidate genes were also located on an apple genetic map. We have shown that the MdMYB10 gene co-segregates with the Rni locus and is on Linkage Group (LG) 09 of the apple genome.

We have performed candidate gene mapping in a fruit tree crop and have provided genetic evidence that red colouration in the fruit core as well as red foliage are both controlled by a single locus named Rni. We have shown that the transcription factor MdMYB10 may be the gene underlying Rni as there were no recombinants between the marker for this gene and the red phenotype in a population of 516 individuals. Associating markers derived from candidate genes with a desirable phenotypic trait has demonstrated the application of genomic tools in a breeding programme of a horticultural crop species.
RELATED GEPHE
Related Genes
Related Haplotypes
No matches found.
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