Fade into you: genetic control of pigmentation patterns in red-flesh apple (Malus domestica)

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 13, 2025

The genetic basis of type 1 red-flesh color development in apple ( Malus domestica ) depends upon a particular allele the MdMYB10 gene. Interestingly, apples are fully red after fruit set, but anthocyanin pigmentation cortex may decrease during growth and maturation, leading to variable patterning intensities mature cortical flesh. We developed histogram-based analysis method quantitatively estimate patterns. This methodology was applied investigate phenotypic diversity four hybrid F1 families segregating for color. Pigmentation patterns were found be heritable allowing identification new locus by QTL analysis. To further mechanisms involved spatial deposition anthocyanin, metabolome, transcriptome methylome comparisons between white flesh areas within genotype cv. ‘R201’ exhibiting patterns, performed. Wide-targeted showed that white-flesh accumulate more dihydrochalcones hydroxycinnamic acids than while flavonoids. Anthocyanin biosynthesis genes positive regulators (MBW complex) up-regulated areas, reduction storage, transport stability (increase pH, down-regulation MdGSTU22 an increase phenolic catabolism concomitant with fading process areas. Expression linked differentially methylated region (DMR) suggesting potential environmental effect on epigenetic control gene expression fading. Altogether, these results provide first characterization functional

Language: Английский

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Genetic Status of the Swedish Central collection of heirloom apple cultivars

Scientia Horticulturae, Journal Year: 2020, Volume and Issue: 272, P. 109599 - 109599

Published: July 17, 2020

Cultivated apple is one of the most widely grown fruit crops worldwide.With introduction modern cultivars, from foreign and national breeding programs, use local cultivars decreased during 20th century.In order to minimize genetic erosion avoid loss special genotypes, a number clonal archives were established across Sweden, with goal retaining old cultivars.About 220 appointed for preservation, obtained status mandate cultivars.Initially, they identified based on pomological traits, but prior establishment Swedish Central Collection genotyped simple sequence repeat (SSR) markers.SSR markers helped evaluate preserved material, as well find best possible true-to-type source propagation, thus guiding Collection.Recently, 215 accessions this collection using 20 K Infinium® single nucleotide polymorphism (SNP) array, in gain insight into its structure.The initial SSR analysis confirmed identity multiple samples same cultivar name different locations several mislabeled samples.In subsequent SNP we 30 relationships parent-offspring relationships, including 18 trios.We also five inconsistent ploidy levels between data, some cases indicating problematic either or archives.These need further investigation ensure their true-to-typeness.Furthermore, has continued grow since onset work now contains additional which should be included future studies.The results indicate that holds high potential value programs.

Language: Английский

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The cherry 6+9K SNP array: a cost-effective improvement to the cherry 6K SNP array for genetic studies

Scientific Reports, Journal Year: 2020, Volume and Issue: 10(1)

Published: May 6, 2020

Abstract Cherry breeding and genetic studies can benefit from genome-wide marker assays. Currently, a 6K SNP array enables genome scans in cherry; however, only third of these SNPs are informative, with low coverage many genomic regions. Adding previously detected to this could provide cost-efficient upgrade increased across the 670 cM/352.9 Mb cherry whole sequence. For sweet cherry, new were chosen following focal point strategy, grouping six eight within 10-kb windows an average 0.6 cM (627 kb) between points. Additional represent important Sweet fruticosa subgenome sour organellar genomes targeted 6942, 2020, 38 SNPs, respectively. The +9K add-on provided 2128, 1091, 70 reliable, polymorphic for avium subgenomes 1241 reliable formed 237 informative points, another 2504 in-between. resolution original will help increase understanding control key traits relationships among individuals cherry.

Language: Английский

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Detection of QTL for apple fruit acidity and sweetness using sensorial evaluation in multiple pedigreed full-sib families

Tree Genetics & Genomes, Journal Year: 2020, Volume and Issue: 16(5)

Published: Sept. 8, 2020

Language: Английский

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Introgressing blue mold resistance into elite apple germplasm by rapid cycle breeding and foreground and background DNA-informed selection

Tree Genetics & Genomes, Journal Year: 2020, Volume and Issue: 16(2)

Published: Feb. 7, 2020

Language: Английский

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