Sergei Kliver, Iva Kovacic, Sarah Mak, Mikkel-Holger S Sinding, Julia Stagegaard, Bent Petersen, Joseph Nesme, M Thomas P Gilbert
{"title":"非洲猎犬(Lycaon pictus)染色体分期二倍体基因组组装。","authors":"Sergei Kliver, Iva Kovacic, Sarah Mak, Mikkel-Holger S Sinding, Julia Stagegaard, Bent Petersen, Joseph Nesme, M Thomas P Gilbert","doi":"10.1093/jhered/esae052","DOIUrl":null,"url":null,"abstract":"<p><p>The African hunting dog (Lycaon pictus, 2n=78) once ranged over most sub-Saharan ecosystems except its deserts and rainforests. However as a result of (still ongoing) population declines, today they remain only as small fragmented populations. Furthermore, the future of the species remains unclear, due to both anthropogenic pressure as well as interactions with domestic dogs, thus their preservation is a conservation priority. On the tree of life, the hunting dog is basal to Canis and Cuon and forms a crown group with them, making it a useful species for comparative genomic studies. Here, we present a diploid chromosome level assembly of an African hunting dog. Assembled according to VGP guidelines from a combination of PacBio HiFi reads and HiC data, it is phased at the level of individual chromosomes. The maternal (pseudo)haplotype (mat) of our assembly has a length of 2.38 Gbp, and 99.36 % of the sequence is encompassed by 39 chromosomal scaffolds. The rest is included in only 36 unplaced short scaffolds. At the contig level, mat consists of only 166 contigs with an N50 of 39 Mbp. BUSCO analysis showed 95.4 % completeness based on Сarnivora conservative genes (carnivora_odb10). When compared to other available genomes from subtribe Canina, the quality of the assembly is excellent, typically between the 1st and 3rd depending on the parameter used, and a significant improvement on previously published genomes for the species. We hope this assembly will play an important role in future conservation efforts and comparative studies of canid genomes.</p>","PeriodicalId":54811,"journal":{"name":"Journal of Heredity","volume":null,"pages":null},"PeriodicalIF":3.0000,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A chromosome phased diploid genome assembly of African hunting dog (Lycaon pictus).\",\"authors\":\"Sergei Kliver, Iva Kovacic, Sarah Mak, Mikkel-Holger S Sinding, Julia Stagegaard, Bent Petersen, Joseph Nesme, M Thomas P Gilbert\",\"doi\":\"10.1093/jhered/esae052\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The African hunting dog (Lycaon pictus, 2n=78) once ranged over most sub-Saharan ecosystems except its deserts and rainforests. However as a result of (still ongoing) population declines, today they remain only as small fragmented populations. Furthermore, the future of the species remains unclear, due to both anthropogenic pressure as well as interactions with domestic dogs, thus their preservation is a conservation priority. On the tree of life, the hunting dog is basal to Canis and Cuon and forms a crown group with them, making it a useful species for comparative genomic studies. Here, we present a diploid chromosome level assembly of an African hunting dog. Assembled according to VGP guidelines from a combination of PacBio HiFi reads and HiC data, it is phased at the level of individual chromosomes. The maternal (pseudo)haplotype (mat) of our assembly has a length of 2.38 Gbp, and 99.36 % of the sequence is encompassed by 39 chromosomal scaffolds. The rest is included in only 36 unplaced short scaffolds. At the contig level, mat consists of only 166 contigs with an N50 of 39 Mbp. BUSCO analysis showed 95.4 % completeness based on Сarnivora conservative genes (carnivora_odb10). When compared to other available genomes from subtribe Canina, the quality of the assembly is excellent, typically between the 1st and 3rd depending on the parameter used, and a significant improvement on previously published genomes for the species. We hope this assembly will play an important role in future conservation efforts and comparative studies of canid genomes.</p>\",\"PeriodicalId\":54811,\"journal\":{\"name\":\"Journal of Heredity\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2024-09-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Heredity\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1093/jhered/esae052\",\"RegionNum\":2,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"EVOLUTIONARY BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Heredity","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1093/jhered/esae052","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"EVOLUTIONARY BIOLOGY","Score":null,"Total":0}
A chromosome phased diploid genome assembly of African hunting dog (Lycaon pictus).
The African hunting dog (Lycaon pictus, 2n=78) once ranged over most sub-Saharan ecosystems except its deserts and rainforests. However as a result of (still ongoing) population declines, today they remain only as small fragmented populations. Furthermore, the future of the species remains unclear, due to both anthropogenic pressure as well as interactions with domestic dogs, thus their preservation is a conservation priority. On the tree of life, the hunting dog is basal to Canis and Cuon and forms a crown group with them, making it a useful species for comparative genomic studies. Here, we present a diploid chromosome level assembly of an African hunting dog. Assembled according to VGP guidelines from a combination of PacBio HiFi reads and HiC data, it is phased at the level of individual chromosomes. The maternal (pseudo)haplotype (mat) of our assembly has a length of 2.38 Gbp, and 99.36 % of the sequence is encompassed by 39 chromosomal scaffolds. The rest is included in only 36 unplaced short scaffolds. At the contig level, mat consists of only 166 contigs with an N50 of 39 Mbp. BUSCO analysis showed 95.4 % completeness based on Сarnivora conservative genes (carnivora_odb10). When compared to other available genomes from subtribe Canina, the quality of the assembly is excellent, typically between the 1st and 3rd depending on the parameter used, and a significant improvement on previously published genomes for the species. We hope this assembly will play an important role in future conservation efforts and comparative studies of canid genomes.
期刊介绍:
Over the last 100 years, the Journal of Heredity has established and maintained a tradition of scholarly excellence in the publication of genetics research. Virtually every major figure in the field has contributed to the journal.
Established in 1903, Journal of Heredity covers organismal genetics across a wide range of disciplines and taxa. Articles include such rapidly advancing fields as conservation genetics of endangered species, population structure and phylogeography, molecular evolution and speciation, molecular genetics of disease resistance in plants and animals, genetic biodiversity and relevant computer programs.