Quantitative genetic analysis and comparison of physical and sensory descriptors relating to fruit flesh firmness in apple (Malus pumila Mill.)

Autor: Stefano Tartarini, Kate Evans, J.J. Verhaegh, A.G. Manganaris, Chris Maliepaard, Graham J.W. King, James R. Lynn, François Laurens, F. H. Alston, Eddie Schrevens, B. Griffon, Charles-Eric Durel
Přispěvatelé: Unité mixte de recherche génétique et horticulture Genhort, Université d'Angers (UA)-Institut National de la Recherche Agronomique (INRA)-Institut National d'Horticulture, ProdInra, Migration
Rok vydání: 2000
Předmět:
0106 biological sciences
Malus
QTL analysis
Population
[SDV.GEN] Life Sciences [q-bio]/Genetics
Biology
Quantitative trait locus
Wiskundige en Statistische Methoden - Biometris
01 natural sciences
Sensory analysis
law.invention
03 medical and health sciences
Firmness
law
Genetics
Texture
Gene–environment interaction
education
Mathematical and Statistical Methods - Biometris
ComputingMilieux_MISCELLANEOUS
030304 developmental biology
QUANTITATIVE TRAIT LOCI
[SDV.GEN]Life Sciences [q-bio]/Genetics
0303 health sciences
education.field_of_study
business.industry
Apple
food and beverages
General Medicine
Quantitative genetics
biology.organism_classification
Penetrometer
Biotechnology
Horticulture
Genes
Plant Research International
Fruit
Principal component analysis
business
Agronomy and Crop Science
010606 plant biology & botany
Zdroj: TAG Theoretical and Applied Genetics
TAG Theoretical and Applied Genetics, Springer Verlag, 2000, 100, pp.1074-1084
Theoretical and Applied Genetics 100 (2000)
Theoretical and Applied Genetics, 100, 1074-1084
ISSN: 1432-2242
0040-5752
DOI: 10.1007/s001220051389
Popis: Texture is a major component of consumer preference for eating-quality in apple. A quantitative genetic analysis of traits associated with fruit-flesh firmness was carried out. This was based on segregation in an unselected mapping population replicated at six sites and harvested over 2 years. Different methods of assessment were compared, and a principal components analysis carried out. Instrumental measures used were Magness-Taylor penetrometer readings, stiffness by acoustic resonance, and a range of sensory descriptors assessed by a trained panel. There were good correlations between some measures, although stiffness was poorly correlated. Whilst genotype by environment effects were large, significant effects were attributable to the genotype, and these were used to detect QTLs. Significant QTLs were detected on seven linkage groups, with large effects on linkage groups L01, L10 and L16. Whilst there was a poor correlation between acoustic stiffness and other measures, the significant and suggestive QTL detected for stiffness on linkage group L10 did represent a subset of significant QTLs detected for the penetrometer measure. The use of sensory assessment proved valuable in detecting QTLs representing different attributes of fruit texture. The possibility of interaction between significant QTLs for fruit texture and other strongly selected traits such as scab resistance and fruit acidity is addressed.
Databáze: OpenAIRE
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