Results 1 to 10 of about 7,677 (151)

Gut microbiota in the short‐beaked echidna (Tachyglossus Aculeatus) shows stability across gestation [PDF]

MicrobiologyOpen, 2023
Indigenous gut microbial communities (microbiota) play critical roles in health and may be especially important for the mother and fetus during pregnancy.
Isini Buthgamuwa, Jane C. Fenelon, Alice Roser, Haley Meer, Stephen D. Johnston, Ashley M. Dungan   +5 more
doaj   +2 more sources

Borreliae Part 1: Borrelia Lyme Group and Echidna-Reptile Group

Biology, 2021
Borreliae are divided into three groups, namely the Lyme group (LG), the Echidna-Reptile group (REPG) and the Relapsing Fever group (RFG). Currently, only Borrelia of the Lyme and RF groups (not all) cause infection in humans.
Giusto Trevisan, Marina Cinco, Sara Trevisini   +2 more
exaly   +3 more sources

Comparative analysis of complete mitochondrial genomes of fourteen moray eels (Anguilliformes: Muraenidae) and primary exploration of their phylogenetic relationship and temperature adaptation [PDF]

BMC Ecology and Evolution
Moray eels (Anguilliformes: Muraenidae) are commonly found in subtropical and tropical waters, where they favor sheltered habitats and occasionally exhibit aggressive behavior.
Wei Tan, Fuxiao Chen, Yongbo Wang, Rongxia Wang, Shuyuan Fu, Shengtao Guo, Hongtao Liu   +6 more
doaj   +2 more sources

Pseudogenization of NK3 homeobox 2 (Nkx3.2) in monotremes provides insight into unique gastric anatomy and physiology [PDF]

Open Biology
The enzymatic breakdown and regulation of food passage through the vertebrate antral stomach and pyloric sphincter (antropyloric region) is a trait conserved over 450 million years.
Jackson Dann, Zhipeng Qu, Linda Shearwin-Whyatt, Rachel van der Ploeg, Frank Grützner   +4 more
doaj   +2 more sources

AMHY and sex determination in egg-laying mammals [PDF]

Genome Biology
Background Egg-laying mammals (monotremes) evolved multiple sex chromosomes independently of therian mammals and lack the sex-determining gene SRY. The Y-localized anti-Müllerian hormone gene (AMHY) is the candidate sex-determination gene in monotremes ...
Linda Shearwin-Whyatt, Jane Fenelon, Hongshi Yu, Andrew Major, Zhipeng Qu, Yang Zhou, Keith Shearwin, James Galbraith, Alexander Stuart, David Adelson, Guojie Zhang, Michael Pyne, Stephen Johnston, Craig Smith, Marilyn Renfree, Frank Grützner   +15 more
doaj   +2 more sources

Attenborough’s echidna rediscovered by combining Indigenous knowledge with camera-trapping [PDF]

npj Biodiversity
We confirm the ‘rediscovery’ of Attenborough’s long-beaked echidna (Zaglossus attenboroughi), one of only five modern egg-laying mammals and, until now, one of the planet’s most enigmatic ‘lost species’.
G. Morib, A. Tilker, L.-R Davranoglou, S. D. Anasari, A. Balázs, P. A. Barnes, M. J. Foote, A. Hamidy, C. D. Heatubun, K. M. Helgen, N. Inayah, M. K. Ikhwan, H. Jayanto, H. J. Keiluhu, I. Kobak, M. Kobak, L. Koungoulos, P. Norotouw, S. O’Connor, S. B. Subakti, Taufiq, P. J. de Vries, M. Webb, S. Wiantoro, H. Yando, A. M. Yohanita, J. A. Kempton   +26 more
doaj   +2 more sources

Color vision evolution in egg-laying mammals: insights from visual photoreceptors and daily activities of Australian echidnas [PDF]

Zoological Letters
Egg-laying mammals (monotremes) are considered “primitive” due to traits such as oviparity, cloaca, and incomplete homeothermy, all of which they share with reptiles.
Shiina Sakamoto, Yuka Matsushita, Akihiro Itoigawa, Takumi Ezawa, Takeshi Fujitani, Kenichiro Takakura, Yang Zhou, Guojie Zhang, Frank Grutzner, Shoji Kawamura, Takashi Hayakawa   +10 more
doaj   +2 more sources

Comparative genomics of monotremes provides insights into the early evolution of mammalian epidermal differentiation genes [PDF]

Scientific Reports
The function of the skin as a barrier against the environment depends on the differentiation of epidermal keratinocytes into highly resilient corneocytes that form the outermost skin layer.
Julia Steinbinder, Attila Placido Sachslehner, Karin Brigit Holthaus, Leopold Eckhart   +3 more
doaj   +2 more sources

Comparative analysis of Borrelia’s Defence mechanisms and their impact on genetic manipulation of low-passage isolates of Borrelia afzelii and Borrelia garinii [PDF]

Current Research in Microbial Sciences
Borrelia, a highly prevalent tick-borne pathogen, has a genome with a linear chromosome and numerous linear and circular plasmids. There are three groups of Borrelia: Lyme borreliosis, relapsing fever, and Echidna-reptile. In Europe, Borrelia afzelii and
Margarida Ruivo, Anna-Margarita Schötta, Theresa Stelzer, Michael Reiter, Michiel Wijnveld   +4 more
doaj   +2 more sources

Convergent gene losses and pseudogenizations in multiple lineages of stomachless fishes [PDF]

Communications Biology
The regressive evolution of independent lineages often results in convergent phenotypes. Several teleost groups display secondary loss of the stomach, and four gastric genes, atp4a, atp4b, pgc, and pga2 have been co-deleted in agastric (stomachless) fish.
Akira Kato, Supriya Pipil, Chihiro Ota, Makoto Kusakabe, Taro Watanabe, Ayumi Nagashima, An-Ping Chen, Zinia Islam, Naoko Hayashi, Marty Kwok-Shing Wong, Masayuki Komada, Michael F. Romero, Yoshio Takei   +12 more
doaj   +2 more sources