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Title: Mapping quantitative trait loci for seed traits in Camelina sativa

Abstract

Camelina (Camelina sativa L. Crantz) is an oilseed crop that has great potential to provide sustainable feedstock for biofuel production and to improve dryland agriculture. A significant breeding objective for camelina is to increase seed size and oil content. Understanding the genetics behind variations of seed size and associated traits such as oil content would help breeders develop varieties of increased oil yield that are more robust, easier to plant and harvest, and better for oil pro- cessing. In this study, we developed a recombinant inbred population derived from the two camelina accessions, Suneson and Pryzeth, with contrasting traits, especially seed size and oil content. Using 189 lines, a genetic map was constructed containing 2376 single nucleotide polymorphism markers spanning 2034.6 cM of 20 linkage groups with an average density of 1.5 cM per locus. Field trials were conducted for 2 years (2017 and 2018) in two environments (dryland and irrigated) in Bozeman, Montana. The results revealed important correlations of seed size with other associated traits such as oil content, pod size and seed number per pod. Significant QTLs were also discovered for these traits. The findings of this study are the first step to isolate genes controlling seed developmentmore » and oil accumulation and to develop advanced varieties of camelina better adapted to modern agriculture by marker-assisted breeding.« less

Authors:
 [1];  [1];  [1]; ORCiD logo [1]
  1. Montana State Univ., Bozeman, MT (United States)
Publication Date:
Research Org.:
Montana State Univ., Bozeman, MT (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23); USDA National Institute of Food and Agriculture
OSTI Identifier:
1593958
Grant/Contract Number:  
SC0016400
Resource Type:
Accepted Manuscript
Journal Name:
Theoretical and Applied Genetics
Additional Journal Information:
Journal Volume: 132; Journal Issue: 9; Journal ID: ISSN 0040-5752
Publisher:
Springer Nature
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; Camelina sativa; genetic linkage map; quantitative trait loci; oil content; seed size

Citation Formats

King, Kevin, Li, Huang, Kang, Jinling, and Lu, Chaofu. Mapping quantitative trait loci for seed traits in Camelina sativa. United States: N. p., 2019. Web. doi:10.1007/s00122-019-03371-8.
King, Kevin, Li, Huang, Kang, Jinling, & Lu, Chaofu. Mapping quantitative trait loci for seed traits in Camelina sativa. United States. doi:10.1007/s00122-019-03371-8.
King, Kevin, Li, Huang, Kang, Jinling, and Lu, Chaofu. Sat . "Mapping quantitative trait loci for seed traits in Camelina sativa". United States. doi:10.1007/s00122-019-03371-8.
@article{osti_1593958,
title = {Mapping quantitative trait loci for seed traits in Camelina sativa},
author = {King, Kevin and Li, Huang and Kang, Jinling and Lu, Chaofu},
abstractNote = {Camelina (Camelina sativa L. Crantz) is an oilseed crop that has great potential to provide sustainable feedstock for biofuel production and to improve dryland agriculture. A significant breeding objective for camelina is to increase seed size and oil content. Understanding the genetics behind variations of seed size and associated traits such as oil content would help breeders develop varieties of increased oil yield that are more robust, easier to plant and harvest, and better for oil pro- cessing. In this study, we developed a recombinant inbred population derived from the two camelina accessions, Suneson and Pryzeth, with contrasting traits, especially seed size and oil content. Using 189 lines, a genetic map was constructed containing 2376 single nucleotide polymorphism markers spanning 2034.6 cM of 20 linkage groups with an average density of 1.5 cM per locus. Field trials were conducted for 2 years (2017 and 2018) in two environments (dryland and irrigated) in Bozeman, Montana. The results revealed important correlations of seed size with other associated traits such as oil content, pod size and seed number per pod. Significant QTLs were also discovered for these traits. The findings of this study are the first step to isolate genes controlling seed development and oil accumulation and to develop advanced varieties of camelina better adapted to modern agriculture by marker-assisted breeding.},
doi = {10.1007/s00122-019-03371-8},
journal = {Theoretical and Applied Genetics},
number = 9,
volume = 132,
place = {United States},
year = {2019},
month = {6}
}

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