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Genome survey and high-density genetic map construction provide genomic and genetic resources for the Pacific white shrimp Litopenaeus vannamei
Yuling, Y.; Zhang, X.; Yuan, J.; Li, F.; Chen, X.; Zhao, Y.; Huang, L.; Zheng, H.; Xiang, J. (2015). Genome survey and high-density genetic map construction provide genomic and genetic resources for the Pacific white shrimp Litopenaeus vannamei. NPG Scientific Reports 5(15612): 14 pp. http://dx.doi.org/10.1038/srep15612
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
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| Trefwoorden |
Litopenaeus vannamei (Boone, 1931) [WoRMS]
Marien/Kust |
| Auteurs | | Top |
- Yuling, Y.
- Zhang, X.
- Yuan, J.
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- Huang, L.
- Zheng, H.
- Xiang, J.
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| Abstract |
The Pacific white shrimp Litopenaeus vannamei is the dominant crustacean species in global seafood mariculture. Understanding the genome and genetic architecture is useful for deciphering complex traits and accelerating the breeding program in shrimp. In this study, a genome survey was conducted and a high-density linkage map was constructed using a next-generation sequencing approach. The genome survey was used to identify preliminary genome characteristics and to generate a rough reference for linkage map construction. De novo SNP discovery resulted in 25,140 polymorphic markers. A total of 6,359 high-quality markers were selected for linkage map construction based on marker coverage among individuals and read depths. For the linkage map, a total of 6,146 markers spanning 4,271.43?cM were mapped to 44 sex-averaged linkage groups, with an average marker distance of 0.7?cM. An integration analysis linked 5,885 genome scaffolds and 1,504 BAC clones to the linkage map. Based on the high-density linkage map, several QTLs for body weight and body length were detected. This high-density genetic linkage map reveals basic genomic architecture and will be useful for comparative genomics research, genome assembly and genetic improvement of L. vannamei and other penaeid shrimp species. |
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