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פותח על ידי קלירמאש פתרונות בע"מ -
QTL analysis for capsaicinoid content in Capsicum
Year:
2006
Source of publication :
Theoretical and Applied Genetics
Authors :
בורובסקי, ילנה
;
.
פארן, אילן
;
.
Volume :
113
Co-Authors:
Ben-Chaim, A., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
Borovsky, Y., Department of Plant Genetics, Agricultural Research Organization, Volcani Center, Bet-Dagan, Israel
Falise, M., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
Mazourek, M., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
Kang, B.-C., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
Paran, I., Department of Plant Genetics, Agricultural Research Organization, Volcani Center, Bet-Dagan, Israel
Jahn, M., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
Facilitators :
From page:
1481
To page:
1490
(
Total pages:
10
)
Abstract:
Pungency or "heat" found in Capsicum fruit results from the biosynthesis and accumulation of alkaloid compounds known as capsaicinoids in the dissepiment, placental tissue adjacent to the seeds. Pepper cultivars differ with respect to their level of pungency because of quantitative and qualitative variation in capsaicinoid content. We analyzed the segregation of three capsaicinoids: capsaicin, dihydrocapsaicin and nordihydrocapsaicin in an inter-specific cross between a mildly pungent Capsicum annuum 'NuMex RNaky' and the wild, highly pungent C. frutescens accession BG2814-6. F3 families were analyzed in three trials in California and in Israel and a dense molecular map was constructed comprised mostly of loci defined by simple sequence repeat (SSR) markers. Six QTL controlling capsaicinoid content were detected on three chromosomes. One gene from the capsaicinoid biosynthetic pathway, BCAT, and one random fruit EST, 3A2, co-localized with QTL detected in this study on chromosomes 3 and 4. Because one confounding factor in quantitative determination of capsaicinoid is fruit size, fruit weight measurements were taken in two trials. Two QTL controlling fruit weight were detected, however, they did not co-localize with QTL detected for capsaicinoid content. The major contribution to the phenotypic variation of capsaicinoid content (24-42% of the total variation) was attributed to a digenic interaction between a main-effect QTL, cap7.1, and a marker located on chromosome 2 that did not have a main effect on the trait. A second QTL, cap7.2 is likely to correspond to the QTL, cap, identified in a previous study as having pronounced influence on capsaicinoid content. © 2006 Springer-Verlag.
Note:
Related Files :
biosynthesis
Capsicum annuum
chromosome mapping
Fruits
Gene
Genetics
metabolism
phenotype
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s00122-006-0395-y
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20251
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:35
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Scientific Publication
QTL analysis for capsaicinoid content in Capsicum
113
Ben-Chaim, A., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
Borovsky, Y., Department of Plant Genetics, Agricultural Research Organization, Volcani Center, Bet-Dagan, Israel
Falise, M., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
Mazourek, M., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
Kang, B.-C., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
Paran, I., Department of Plant Genetics, Agricultural Research Organization, Volcani Center, Bet-Dagan, Israel
Jahn, M., Department of Plant Breeding and Genetics, Cornell University, 313 Bradfield Hall, Ithaca, NY 14853, United States
QTL analysis for capsaicinoid content in Capsicum
Pungency or "heat" found in Capsicum fruit results from the biosynthesis and accumulation of alkaloid compounds known as capsaicinoids in the dissepiment, placental tissue adjacent to the seeds. Pepper cultivars differ with respect to their level of pungency because of quantitative and qualitative variation in capsaicinoid content. We analyzed the segregation of three capsaicinoids: capsaicin, dihydrocapsaicin and nordihydrocapsaicin in an inter-specific cross between a mildly pungent Capsicum annuum 'NuMex RNaky' and the wild, highly pungent C. frutescens accession BG2814-6. F3 families were analyzed in three trials in California and in Israel and a dense molecular map was constructed comprised mostly of loci defined by simple sequence repeat (SSR) markers. Six QTL controlling capsaicinoid content were detected on three chromosomes. One gene from the capsaicinoid biosynthetic pathway, BCAT, and one random fruit EST, 3A2, co-localized with QTL detected in this study on chromosomes 3 and 4. Because one confounding factor in quantitative determination of capsaicinoid is fruit size, fruit weight measurements were taken in two trials. Two QTL controlling fruit weight were detected, however, they did not co-localize with QTL detected for capsaicinoid content. The major contribution to the phenotypic variation of capsaicinoid content (24-42% of the total variation) was attributed to a digenic interaction between a main-effect QTL, cap7.1, and a marker located on chromosome 2 that did not have a main effect on the trait. A second QTL, cap7.2 is likely to correspond to the QTL, cap, identified in a previous study as having pronounced influence on capsaicinoid content. © 2006 Springer-Verlag.
Scientific Publication
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