Linkage of the A locus for the presence of anthocyanin and fs10.1, a major fruit-shape QTL in pepper.

Linkage of the A locus for the presence of anthocyanin and fs10.1, a major fruit-shape QTL in pepper. Research Abstract Details 

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Linkage of the A locus for the presence of anthocyanin and fs10.1, a major fruit-shape QTL in pepper. Abstract Text:

A B Chaim,Y Borovsky,W De Jong,I Paran,

The purple color of the foliage, flower and immature fruit of pepper ( Capsicum spp.) is a result of the accumulation of anthocyanin pigments in these tissues. The expression of anthocyanins is controlled by the incompletely dominant gene A. We have mapped A to pepper chromosome 10 in a Capsicum annuum (5226) x Capsicum chinense (PI 159234) F(2) population to a genomic region that also controls anthocyanin expression in two other Solanaceous species, tomato and potato, suggesting that variation for tissue-specific expression of anthocyanin pigments in these plants is controlled by an orthologous gene(s). We mapped an additional locus, Fc, for the purple anther filament in an F(2) population from a cross of IL 579, a C. chinense introgression line and its recurrent parent 100/63, to the same position as A, suggesting that the two loci are allelic. The two anthocyanin loci were linked to a major quantitative trait locus, fs10.1, for fruit-shape index (ratio of fruit length to fruit width), that also segregated in the F(2) populations. This finding verified the observation of Peterson in 1959 of linkage between fruit color and fruit-shape genes in a cross between round and elongated-fruited parents. The linkage relationship in pepper resembles similar linkage in potato, in which anthocyanin and tuber-shape genes were found linked to each other in a cross of round and elongated-tuber parents. It is therefore possible that the shape pattern of distinct organs such as fruit and tuber in pepper and potato is controlled by a similar gene(s).

Linkage of the A locus for the presence of anthocyanin and fs10.1, a major fruit-shape QTL in pepper. Publishing Authors By Initials

AB Chaim,Y Borovsky,W De Jong,I Paran,

For similar genetic structures: genome: genome components: genes: quantitative trait loci research abstracts see: genetic structures: genome: genome components: genes: quantitative trait loci research

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Linkage of the A locus for the presence of anthocyanin and fs10.1, a major fruit-shape QTL in pepper. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: TAG. Theoretical and applied genetics. Theoretisch

VOLUME: 106

Page Numbers: 889-94

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ISSN: 0040-5752

DAY: 30

MONTH: 10

YEAR: 2002

Linkage of the A locus for the presence of anthocyanin and fs10.1, a major fruit-shape QTL in pepper. Information

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LANGUAGE: eng

NlmUniqueID: 145600

Linkage of the A locus for the presence of anthocyanin and fs10.1, a major fruit-shape QTL in pepper. Keywords Mesh Terms:

KEYWORDS: Quantitative Trait Loci

MESH TERMS: genetics

Chemical & Substance for Abstract: Linkage of the A locus for the presence of anthocyanin and fs10.1, a major fruit-shape QTL in pepper. Information

Substance Name: Anthocyanins

Registry Number: 0

Grant and Affiliation Information for Linkage of the A locus for the presence of anthocyanin and fs10.1, a major fruit-shape QTL in pepper.

AFFILIATION: Department of Plant Genetics and Breeding, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel.

Country: Germany

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MEDLINETA: Theor Appl Genet

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