Quantitative genetic analysis of berry firmness in table grape (Vitis vinifera L.)

  1. Carreño, I. 4
  2. Cabezas, J.A. 2
  3. Martínez-Mora, C. 4
  4. Arroyo-García, R. 1
  5. Cenis, J.L. 4
  6. Martínez-Zapater, J.M. 3
  7. Carreño, J. 4
  8. Ruiz-García, L. 4
  1. 1 Universidad Politécnica de Madrid
    info

    Universidad Politécnica de Madrid

    Madrid, España

    ROR https://ror.org/03n6nwv02

  2. 2 Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
    info

    Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria

    Madrid, España

    ROR https://ror.org/011q66e29

  3. 3 Instituto de Ciencias de la Vid y del Vino
    info

    Instituto de Ciencias de la Vid y del Vino

    Logroño, España

    ROR https://ror.org/01rm2sw78

  4. 4 Instituto Murciano de Investigacion y Desarrollo Agrario y Alimentario
    info

    Instituto Murciano de Investigacion y Desarrollo Agrario y Alimentario

    La Alberca de Záncara, España

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Journal:
Tree Genetics and Genomes

ISSN: 1614-2942

Year of publication: 2014

Volume: 11

Issue: 1

Type: Article

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DOI: 10.1007/S11295-014-0818-X SCOPUS: 2-s2.0-84919723232 WoS: WOS:000349553500038 GOOGLE SCHOLAR

More publications in: Tree Genetics and Genomes

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Abstract

Berry texture is a determinant quality trait in the breeding of new table grape varieties. We present the first mapping quantitative trait loci (QTL) results for berry firmness in table grape. Two segregating progenies, Muscat Hamburg × Sugraone (153 offspring) and Ruby Seedless × Moscatuel (78 offspring), were evaluated for this trait during two and four productive seasons, respectively. Firmness was scored at harvest as the force (newtons) required for a 20 % deformation of the berries. Parental and consensus genetic maps were built for each population. QTL analyses revealed a complex genetic control of firmness. Significant QTLs at genome-wide level were detected in seven genomic regions on linkage groups (LGs) 1, 4, 5, 9, 10, 13, and 18, individually explaining up to 19.8 % of the total phenotypic variance. The combined effect of all the QTLs detected in one season explained up to 44.5 % of the total phenotypic variance. Some annotated genes colocating with the LOD-1 support intervals of those QTLs are proposed as putative candidate genes that might be responsible for the QTLs that affect berry firmness.