Assessing genetic variation to predict the breeding value of winter triticale cultivars and lines

• Autorzy: Goral H , Tyrka M , Spiss L
• Języki publikacji: EN

Abstrakty

EN

The objective of this study was to evaluate the usefulness of amplified fragment length polymorphism (AFLP) analyses for selection of the best parents for breeding of hybrid winter triticale. Phenotypic diversity was measured for 8 agronomic traits in 10 parents and 27 F₁ hybrids. Genotypic diversity was measured by 91 AFLP markers. Coefficients of correlation of genetic similarity (AFLP-GS) with both Euclidean distances and mean values of the traits were generally not significant. A correction of the preliminary binary matrix into trait-specific derived matrices increased the values of 5 correlation coefficients to a significant level. The correlation of AFLP-GS with mid-parent heterosis of grain weight per plant was low but significant (r = -0.452). Our study confirms the effectiveness of marker preselection for obtaining AFLP-GS better correlated with heterosis. The use of derived matrices is promising for reducing the number of cross combinations tested for specific combining ability.

Słowa kluczowe

EN

line; breeding value; phenotypic diversity; triticale; heterosis; hybrid triticale; genetic diversity; winter triticale; triticale cultivar; genetic variation; plant breeding

• Wydawca: -
• Czasopismo: Journal of Applied Genetics
• Rocznik: 2005
• Tom: 46
• Numer: 2
• Opis fizyczny: p.125-131,fig.,ref.

Twórcy

autor

Goral H

• Department of Plant Breeding and Science, Agricultural University, Krakow, Poland

autor

Tyrka M

• Laboratory for Population Genetics, Polonia University, Częstochowa, Poland

autor

Spiss L

• Department of Plant Breeding and Science, Agricultural University, Krakow, Poland

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