首次从历史悠久的博物馆样本中对绿血石龙子(Prasinohaema aff.

IF 3 2区 生物学 Q2 EVOLUTIONARY BIOLOGY
Taylor S Probst, Daniel D Davis, Alison S Whiting, Paul B Frandsen
{"title":"首次从历史悠久的博物馆样本中对绿血石龙子(Prasinohaema aff.","authors":"Taylor S Probst, Daniel D Davis, Alison S Whiting, Paul B Frandsen","doi":"10.1093/jhered/esaf014","DOIUrl":null,"url":null,"abstract":"<p><p>The scincid genus Prasinohaema represents the only group of amniotes to possess green blood, resulting from the accumulation of the bile pigment biliverdin. Recent phylogenetic analyses have shown Prasinohaema to be polyphyletic with 4 independent origins for green blood. It is unknown why this trait has evolved in multiple instances and how Prasinohaema species are able to tolerate such high concentrations of a cytotoxic bile pigment. Here, we report the first de novo genome assembly and annotation for a green blooded skink, Prasinohaema aff. flavipes, which was sequenced from an ethanol preserved specimen that was collected more than 20 years ago. Our assembly comprises 907 contigs spanning 1.52 Gbp with contig N50 of 3.2 Mbp. The genome is highly complete, with a BUSCO completeness score of 97.76%. Phylogenetic analysis confirmed that our specimen is sister to P. flavipes with high support; however, the two specimens exhibit deep genetic divergence, perhaps supporting their distinctiveness. Searches for the gene encoding serum albumin, a common blood transport protein known to bind biliverdin, suggested it is absent from our P. aff. flavipes genome. Yet, we found a tandem duplication of the serum albumin paralog alpha-fetoprotein, which may play a role in biliverdin retention. BUSTED analysis of alpha-fetoprotein sequences across reptiles revealed that both copies of alpha-fetoprotein from our Prasinohaema genome are under diversifying selection. We envision this new genome assembly as a valuable source in examining the key genes, regulatory mechanisms, and functional mutations involved in the elevated biliverdin levels.</p>","PeriodicalId":54811,"journal":{"name":"Journal of Heredity","volume":" ","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The first de novo genome assembly and annotation of a green-blooded skink (Prasinohaema aff. flavipes) from a historic museum sample.\",\"authors\":\"Taylor S Probst, Daniel D Davis, Alison S Whiting, Paul B Frandsen\",\"doi\":\"10.1093/jhered/esaf014\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The scincid genus Prasinohaema represents the only group of amniotes to possess green blood, resulting from the accumulation of the bile pigment biliverdin. Recent phylogenetic analyses have shown Prasinohaema to be polyphyletic with 4 independent origins for green blood. It is unknown why this trait has evolved in multiple instances and how Prasinohaema species are able to tolerate such high concentrations of a cytotoxic bile pigment. Here, we report the first de novo genome assembly and annotation for a green blooded skink, Prasinohaema aff. flavipes, which was sequenced from an ethanol preserved specimen that was collected more than 20 years ago. Our assembly comprises 907 contigs spanning 1.52 Gbp with contig N50 of 3.2 Mbp. The genome is highly complete, with a BUSCO completeness score of 97.76%. Phylogenetic analysis confirmed that our specimen is sister to P. flavipes with high support; however, the two specimens exhibit deep genetic divergence, perhaps supporting their distinctiveness. Searches for the gene encoding serum albumin, a common blood transport protein known to bind biliverdin, suggested it is absent from our P. aff. flavipes genome. Yet, we found a tandem duplication of the serum albumin paralog alpha-fetoprotein, which may play a role in biliverdin retention. BUSTED analysis of alpha-fetoprotein sequences across reptiles revealed that both copies of alpha-fetoprotein from our Prasinohaema genome are under diversifying selection. We envision this new genome assembly as a valuable source in examining the key genes, regulatory mechanisms, and functional mutations involved in the elevated biliverdin levels.</p>\",\"PeriodicalId\":54811,\"journal\":{\"name\":\"Journal of Heredity\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-03-22\",\"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/esaf014\",\"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/esaf014","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"EVOLUTIONARY BIOLOGY","Score":null,"Total":0}
引用次数: 0

摘要

本文章由计算机程序翻译,如有差异,请以英文原文为准。
The first de novo genome assembly and annotation of a green-blooded skink (Prasinohaema aff. flavipes) from a historic museum sample.

The scincid genus Prasinohaema represents the only group of amniotes to possess green blood, resulting from the accumulation of the bile pigment biliverdin. Recent phylogenetic analyses have shown Prasinohaema to be polyphyletic with 4 independent origins for green blood. It is unknown why this trait has evolved in multiple instances and how Prasinohaema species are able to tolerate such high concentrations of a cytotoxic bile pigment. Here, we report the first de novo genome assembly and annotation for a green blooded skink, Prasinohaema aff. flavipes, which was sequenced from an ethanol preserved specimen that was collected more than 20 years ago. Our assembly comprises 907 contigs spanning 1.52 Gbp with contig N50 of 3.2 Mbp. The genome is highly complete, with a BUSCO completeness score of 97.76%. Phylogenetic analysis confirmed that our specimen is sister to P. flavipes with high support; however, the two specimens exhibit deep genetic divergence, perhaps supporting their distinctiveness. Searches for the gene encoding serum albumin, a common blood transport protein known to bind biliverdin, suggested it is absent from our P. aff. flavipes genome. Yet, we found a tandem duplication of the serum albumin paralog alpha-fetoprotein, which may play a role in biliverdin retention. BUSTED analysis of alpha-fetoprotein sequences across reptiles revealed that both copies of alpha-fetoprotein from our Prasinohaema genome are under diversifying selection. We envision this new genome assembly as a valuable source in examining the key genes, regulatory mechanisms, and functional mutations involved in the elevated biliverdin levels.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Heredity
Journal of Heredity 生物-遗传学
CiteScore
5.20
自引率
6.50%
发文量
63
审稿时长
6-12 weeks
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.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信