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The first genetically confirmed live sighting of the Deraniyagala's beaked whale (Mesoplodon hotaula), with insights into the diversity, phylogeny, and past demographic history

文献类型：期刊论文

;
作者Lin, Wenzhi1; Kang, Hui1,2,3; Seim, Inge1; Liu, Binshuai1,4; Chen, Shenglan1,4; Liu, Mingming1; Dong, Lijun1; Lin, Mingli1; Song, Yuhang1,4; Ouyang, Mingyue1,4
刊名MARINE MAMMAL SCIENCE ; MARINE MAMMAL SCIENCE
出版日期2024-09-05 ; 2024-09-05
页码20
关键词beaked whale beaked whale deep-diving species demography genome sequencing and assembly inbreeding molecular species identification deep-diving species demography genome sequencing and assembly inbreeding molecular species identification
ISSN号0824-0469 ; 0824-0469
DOI10.1111/mms.13180 ; 10.1111/mms.13180
英文摘要Beaked whales have recently been reported in the South China Sea but with taxonomic uncertainty due to their ambiguous morphological features. Here, we sequenced three genetic markers, the control region (CR) and cytochrome b (cytb) of the mitochondrial genome and the first intron of the nuclear muscle actin gene ACTA2, of two biopsy samples collected in 2021, and revealed unambiguous clustering with sequences previously attributed to Deraniyagala's beaked whale (Mesoplodon hotaula). Phylogenetic analysis of complete mitogenomes strongly supported the close relationship between the Deraniyagala's beaked whale and the ginkgo-toothed beaked whale (M. ginkgodens). Whole-genome sequencing suggested a high degree of heterozygosity in the Deraniyagala's beaked whale. Ancient inbreeding may have had a greater impact than the recent inbreeding on Deraniyagala's beaked whales, but more samples are needed to draw a firm conclusion. The approximate effective population size of Deraniyagala's beaked whale was found lowest among seven examined ziphiids, which has been experiencing a steady decline since similar to 300,000 ya. Therefore, we suggest that the conservation status of Deraniyagala's beaked whales should be assessed when essential information is available. The results of our study provide genetic evidence of the live sighting of Deraniyagala's beaked whale in the South China Sea and are fundamental to understanding the morphological, behavioral, and ecological perspectives of this cetacean species.; Beaked whales have recently been reported in the South China Sea but with taxonomic uncertainty due to their ambiguous morphological features. Here, we sequenced three genetic markers, the control region (CR) and cytochrome b (cytb) of the mitochondrial genome and the first intron of the nuclear muscle actin gene ACTA2, of two biopsy samples collected in 2021, and revealed unambiguous clustering with sequences previously attributed to Deraniyagala's beaked whale (Mesoplodon hotaula). Phylogenetic analysis of complete mitogenomes strongly supported the close relationship between the Deraniyagala's beaked whale and the ginkgo-toothed beaked whale (M. ginkgodens). Whole-genome sequencing suggested a high degree of heterozygosity in the Deraniyagala's beaked whale. Ancient inbreeding may have had a greater impact than the recent inbreeding on Deraniyagala's beaked whales, but more samples are needed to draw a firm conclusion. The approximate effective population size of Deraniyagala's beaked whale was found lowest among seven examined ziphiids, which has been experiencing a steady decline since similar to 300,000 ya. Therefore, we suggest that the conservation status of Deraniyagala's beaked whales should be assessed when essential information is available. The results of our study provide genetic evidence of the live sighting of Deraniyagala's beaked whale in the South China Sea and are fundamental to understanding the morphological, behavioral, and ecological perspectives of this cetacean species.
WOS关键词POLYMERASE-CHAIN-REACTION ; POLYMERASE-CHAIN-REACTION ; MITOCHONDRIAL GENOME ; POPULATION-STRUCTURE ; CETACEA ; TOOL ; IDENTIFICATION ; DELIMITATION ; RESURRECTION ; HOMOZYGOSITY ; ANNOTATION ; MITOCHONDRIAL GENOME ; POPULATION-STRUCTURE ; CETACEA ; TOOL ; IDENTIFICATION ; DELIMITATION ; RESURRECTION ; HOMOZYGOSITY ; ANNOTATION
资助项目National Natural Science Foundation of China[42225604] ; National Natural Science Foundation of China[42225604] ; National Natural Science Foundation of China[41422604] ; Chinese Academy of Sciences[183446KYSB20200016] ; Key Deployment Project of Center for Ocean Mega-Science of the Chinese Academy of Sciences[COMS2020Q15] ; National Natural Science Foundation of China[41422604] ; Chinese Academy of Sciences[183446KYSB20200016] ; Key Deployment Project of Center for Ocean Mega-Science of the Chinese Academy of Sciences[COMS2020Q15]
WOS研究方向Marine & Freshwater Biology ; Marine & Freshwater Biology ; Zoology ; Zoology
语种英语 ; 英语
WOS记录号WOS:001307418900001 ; WOS:001307418900001
出版者WILEY ; WILEY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Key Deployment Project of Center for Ocean Mega-Science of the Chinese Academy of Sciences ; Chinese Academy of Sciences ; Key Deployment Project of Center for Ocean Mega-Science of the Chinese Academy of Sciences
源URL[http://ir.idsse.ac.cn/handle/183446/11432]  
专题深海科学研究部_深海生物学研究室_海洋哺乳动物与海洋生物声学研究组
研究生部
通讯作者Li, Songhai
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Marine Mammal & Marine Bioacoust Lab, Sanya, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Conservat Chinese Acad Sci, Innovat Res Ctr Aquat Mammals, Wuhan, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.BGI Res, Qingdao, Peoples R China
6.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
推荐引用方式
GB/T 7714		 Lin, Wenzhi,Kang, Hui,Seim, Inge,et al. The first genetically confirmed live sighting of the Deraniyagala's beaked whale (Mesoplodon hotaula), with insights into the diversity, phylogeny, and past demographic history, The first genetically confirmed live sighting of the Deraniyagala's beaked whale (Mesoplodon hotaula), with insights into the diversity, phylogeny, and past demographic history[J]. MARINE MAMMAL SCIENCE, MARINE MAMMAL SCIENCE,2024, 2024:20, 20.
APA Lin, Wenzhi.,Kang, Hui.,Seim, Inge.,Liu, Binshuai.,Chen, Shenglan.,...&Li, Songhai.(2024).The first genetically confirmed live sighting of the Deraniyagala's beaked whale (Mesoplodon hotaula), with insights into the diversity, phylogeny, and past demographic history.MARINE MAMMAL SCIENCE,20.
MLA Lin, Wenzhi,et al."The first genetically confirmed live sighting of the Deraniyagala's beaked whale (Mesoplodon hotaula), with insights into the diversity, phylogeny, and past demographic history".MARINE MAMMAL SCIENCE (2024):20.

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来源：深海科学与工程研究所

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