An Ultra-high Density SNP-based Linkage Map for Enhancing the Pikeperch (Sander Lucioperca) Genome Assembly to Chromosome-scale
Authors
Affiliations
Pikeperch (Sander lucioperca) is a fish species with growing economic significance in the aquaculture industry. However, successful positioning of pikeperch in large-scale aquaculture requires advances in our understanding of its genome organization. In this study, an ultra-high density linkage map for pikeperch comprising 24 linkage groups and 1,023,625 single nucleotide polymorphisms markers was constructed after genotyping whole-genome sequencing data from 11 broodstock and 363 progeny, belonging to 6 full-sib families. The sex-specific linkage maps spanned a total of 2985.16 cM in females and 2540.47 cM in males with an average inter-marker distance of 0.0030 and 0.0026 cM, respectively. The sex-averaged map spanned a total of 2725.53 cM with an average inter-marker distance of 0.0028 cM. Furthermore, the sex-averaged map was used for improving the contiguity and accuracy of the current pikeperch genome assembly. Based on 723,360 markers, 706 contigs were anchored and oriented into 24 pseudomolecules, covering a total of 896.48 Mb and accounting for 99.47% of the assembled genome size. The overall contiguity of the assembly improved with a scaffold N50 length of 41.06 Mb. Finally, an updated annotation of protein-coding genes and repetitive elements of the enhanced genome assembly is provided at NCBI.
Souza-Borges C, Utsunomia R, Varani A, Uliano-Silva M, Lira L, Butzge A Gigascience. 2024; 13.
PMID: 39589439 PMC: 11590113. DOI: 10.1093/gigascience/giae085.
Verleih M, Visnovska T, Nguinkal J, Rebl A, Goldammer T, Andreassen R Int J Mol Sci. 2024; 25(1).
PMID: 38203361 PMC: 10778745. DOI: 10.3390/ijms25010189.
CLARITY: a Shiny app for interactive visualisation of the bovine physical-genetic map.
Melzer N, Qanbari S, Ding X, Wittenburg D Front Genet. 2023; 14:1082782.
PMID: 37323679 PMC: 10267868. DOI: 10.3389/fgene.2023.1082782.
Analysis of Autozygosity Using Whole-Genome Sequence Data of Full-Sib Families in Pikeperch ().
De Los Rios-Perez L, Druet T, Goldammer T, Wittenburg D Front Genet. 2022; 12:786934.
PMID: 35111201 PMC: 8801746. DOI: 10.3389/fgene.2021.786934.
Wittmeyer K, Oppenheim S, Hopper K G3 (Bethesda). 2021; 12(1).
PMID: 34751385 PMC: 8727961. DOI: 10.1093/g3journal/jkab386.