Construction of a high-density genetic map and fine QTL mapping for growth and nutritional traits of Crassostrea gigas ...

Abstract Background Both growth and nutritional traits are important economic traits of Crassostrea gigas (C. gigas) in industry. But few work has been done to study the genetic architecture of nutritional traits of the oyster. In this study, we constructed a high-density genetic map of C. gigas to...

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Bibliographic Details
Main Authors: Li, Chunyan, Wang, Jinpeng, Song, Kai, Meng, Jie, Xu, Fei, Li, Li, Zhang, Guofan
Format: Article in Journal/Newspaper
Language:unknown
Published: figshare 2018
Subjects:
Online Access:https://dx.doi.org/10.6084/m9.figshare.c.4207934
https://springernature.figshare.com/collections/Construction_of_a_high-density_genetic_map_and_fine_QTL_mapping_for_growth_and_nutritional_traits_of_Crassostrea_gigas/4207934
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Summary:Abstract Background Both growth and nutritional traits are important economic traits of Crassostrea gigas (C. gigas) in industry. But few work has been done to study the genetic architecture of nutritional traits of the oyster. In this study, we constructed a high-density genetic map of C. gigas to help assemble the genome sequence onto chromosomes, meanwhile explore the genetic basis for nutritional traits via quantitative trait loci (QTL) mapping. Results The constructed genetic map contained 5024 evenly distributed markers, with an average marker interval of 0.68Â cM, thus representing the densest genetic map produced for the oyster. According to the high collinearity between the consensus map and the oyster genome, 1574 scaffold (about 70%) of the genome sequence of C. gigas were successfully anchored to 10 linkage groups (LGs) of the consensus map. Using this high-qualified genetic map, we then conducted QTL analysis for growth and nutritional traits, the latter of which includes glycogen, amino acid ...