Genomic analysis reveals a cryptic pangolin species.

Autor:	Gu TT; State Key Laboratory for Conservation and Utilization of Bio-Resource in Yunnan, School of Life Sciences, Yunnan University, Kunming 650500, China., Wu H; State Key Laboratory for Conservation and Utilization of Bio-Resource in Yunnan, School of Life Sciences, Yunnan University, Kunming 650500, China., Yang F; Kadoorie Farm and Botanic Garden, Tai Po, Hong Kong Special Administrative Region 999077, China., Gaubert P; Laboratoire Evolution et Diversité Biologique, Université Toulouse III-Paul Sabatier, 31062 Toulouse Cedex 9, France.; Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Porto 4450-208, Portugal., Heighton SP; Laboratoire Evolution et Diversité Biologique, Université Toulouse III-Paul Sabatier, 31062 Toulouse Cedex 9, France., Fu Y; The State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, China.; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China., Liu K; The State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, China.; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China., Luo SJ; The State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, China.; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China., Zhang HR; Kadoorie Farm and Botanic Garden, Tai Po, Hong Kong Special Administrative Region 999077, China., Hu JY; State Key Laboratory for Conservation and Utilization of Bio-Resource in Yunnan, School of Life Sciences, Yunnan University, Kunming 650500, China., Yu L; State Key Laboratory for Conservation and Utilization of Bio-Resource in Yunnan, School of Life Sciences, Yunnan University, Kunming 650500, China.
Jazyk:	angličtina
Zdroj:	Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2023 Oct 03; Vol. 120 (40), pp. e2304096120. Date of Electronic Publication: 2023 Sep 25.
DOI:	10.1073/pnas.2304096120
Abstrakt:	Eight extant species of pangolins are currently recognized. Recent studies found that two mitochondrial haplotypes identified in confiscations in Hong Kong could not be assigned to any known pangolin species, implying the existence of a species. Here, we report that two additional mitochondrial haplotypes identified in independent confiscations from Yunnan align with the putative species haplotypes supporting the existence of this mysterious species/population. To verify the new species scenario we performed a comprehensive analysis of scale characteristics and 138 whole genomes representing all recognized pangolin species and the cryptic new species, 98 of which were generated here. Our morphometric results clearly attributed this cryptic species to Asian pangolins ( Manis sp.) and the genomic data provide robust and compelling evidence that it is a pangolin species distinct from those recognized previously, which separated from the Philippine pangolin and Malayan pangolin over 5 Mya. Our study provides a solid genomic basis for its formal recognition as the ninth pangolin species or the fifth Asian one, supporting a new taxonomic classification of pangolins. The effects of glacial climate changes and recent anthropogenic activities driven by illegal trade are inferred to have caused its population decline with the genomic signatures showing low genetic diversity, a high level of inbreeding, and high genetic load. Our finding greatly expands current knowledge of pangolin diversity and evolution and has vital implications for conservation efforts to prevent the extinction of this enigmatic and endangered species from the wild.
Databáze:	MEDLINE
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