Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Expanding Acutuncus: Phylogenetics and morphological analyses reveal a considerably wider distribution for this tardigrade genus. / Vecchi, Matteo; Цветкова, Александра Юрьевна; Stec, Daniel; Ferrari, Claudio; Calhim, Sara; Туманов, Денис Владимирович.
в: Molecular Phylogenetics and Evolution, Том 180, 107707, 01.03.2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Expanding Acutuncus: Phylogenetics and morphological analyses reveal a considerably wider distribution for this tardigrade genus
AU - Vecchi, Matteo
AU - Цветкова, Александра Юрьевна
AU - Stec, Daniel
AU - Ferrari, Claudio
AU - Calhim, Sara
AU - Туманов, Денис Владимирович
PY - 2023/3/1
Y1 - 2023/3/1
N2 - The tardigrade genus Acutuncus has been long thought to be an Antarctic endemism, well adapted to this harsh environment. The Antarctic endemicity of Acutuncus was recently dispelled with the description of Acutuncus mariae Zawierucha, 2020 found in the Svalbard archipelago. The integrated analyses on two newly found Acutuncus populations from UK and Italy, and a population of Acutuncus antarcticus found close to its type locality allowed us to expand the climatic and geographic range of the genus Acutuncus. These findings also allowed us to re-evaluate the morphological diagnoses of Acutuncus and accommodate it in the newly proposed monotypic family Acutuncidae fam. nov. Two new Acutuncus species morpho-groups are instituted based on eggs morphology: one (Acutuncus antarcticus morphogroup) including the Antarctic Acutuncus taxa characterized by eggs with long pillars within the chorion and eggs laid freely to the environment, the other (Acutuncus mariae morphogroup) including the European species, characterized by eggs with short pillars within the chorion and eggs laid in the exuvium. Finally, we describe two new Acutuncus species from Europe: Acutuncus mecnuffi sp. nov. and Acutuncus giovanniniae sp. nov.
AB - The tardigrade genus Acutuncus has been long thought to be an Antarctic endemism, well adapted to this harsh environment. The Antarctic endemicity of Acutuncus was recently dispelled with the description of Acutuncus mariae Zawierucha, 2020 found in the Svalbard archipelago. The integrated analyses on two newly found Acutuncus populations from UK and Italy, and a population of Acutuncus antarcticus found close to its type locality allowed us to expand the climatic and geographic range of the genus Acutuncus. These findings also allowed us to re-evaluate the morphological diagnoses of Acutuncus and accommodate it in the newly proposed monotypic family Acutuncidae fam. nov. Two new Acutuncus species morpho-groups are instituted based on eggs morphology: one (Acutuncus antarcticus morphogroup) including the Antarctic Acutuncus taxa characterized by eggs with long pillars within the chorion and eggs laid freely to the environment, the other (Acutuncus mariae morphogroup) including the European species, characterized by eggs with short pillars within the chorion and eggs laid in the exuvium. Finally, we describe two new Acutuncus species from Europe: Acutuncus mecnuffi sp. nov. and Acutuncus giovanniniae sp. nov.
KW - Antarctica
KW - Endemism
KW - Integrative taxonomy
KW - Polar region
KW - Tardigrade
UR - https://www.mendeley.com/catalogue/ef5f10b3-ea07-3193-aeb2-5b4781d3f7ff/
U2 - 10.1016/j.ympev.2023.107707
DO - 10.1016/j.ympev.2023.107707
M3 - Article
VL - 180
JO - Molecular Phylogenetics and Evolution
JF - Molecular Phylogenetics and Evolution
SN - 1055-7903
M1 - 107707
ER -
ID: 114645487