QTL mapping of fruit-related traits in pepper (Capsicum annuum)

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מדריך מקוצר למשתמש מדריך מפורט למשתמש

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הספר "אוצר וולקני"

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פותח על ידי קלירמאש פתרונות בע"מ -

QTL mapping of fruit-related traits in pepper (Capsicum annuum)

Year: 

2001

Source of publication :

Theoretical and Applied Genetics

Authors :

בן חיים, ארנון

;

פארן, אילן

.

Volume :

102

Co-Authors: 

Chaim, A.B., Department of Plant Genetics and Breeding, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Paran, I., Department of Plant Genetics and Breeding, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Grube, R.C., Department of Plant Breeding, Cornell Universiy, Ithaca, NY 14853, United States
Jahn, M., Department of Plant Breeding, Cornell Universiy, Ithaca, NY 14853, United States
Van Wijk, R., Keygene, N.V., 6700 AE Wageningen, Netherlands
Peleman, J., Keygene, N.V., 6700 AE Wageningen, Netherlands

From page: 

1016

To page: 

1028

(

Total pages: 

13

)

Link :

QTL mapping of fruit-related traits in pepper (Capsicum annuum)

Abstract: 

QTL analysis of pepper fruit characters was performed in an F3 population derived from a cross between two Capsicum annuum genotypes, the bell-type cultivar Maor and the Indian small-fruited line Perennial. RFLP, AFLP®1, RAPD and morphological markers (a total of 177) were used to construct a comparative pepper-tomato genetic map for this cross, and 14 quantitatively inherited traits were evaluated in 180 F3 families. A total of 55 QTL were identified by interval analysis using LOD 3.0 as the threshold for QTL detection. QTL for several traits including fruit diameter and weight, pericarp thickness and pedicel diameter were often located in similar chromosomal regions, thus reflecting high genetic correlations among these traits. A major QTL that accounts for more than 60% of the phenotypic variation for fruit shape (ratio of fruit length to fruit diameter) was detected in chromosome 3. This chromosome also contained QTL for most of the traits scored in the population. Markers in linkage groups 2, 3, 8 and 10 were associated with QTL for multiple traits, thereby suggesting their importance as loci that control developmental processes in pepper. Several QTL in pepper appeared to correspond to positions in tomato for loci controlling the same traits, suggesting the hypothesis that these QTL may be orthologous in the two species.