Results 1 to 10 of about 12,668 (124)

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

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

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

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

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

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

Borrelial Diseases Across Eurasia [PDF]

Biology
This comprehensive review explores the distribution, diversity, and epidemiology of tick-borne borrelioses across Eurasia, focusing on Lyme borreliosis (LB) and other Borrelia-related infections. The genus Borrelia is categorized into three major groups,
Serena Bergamo, Giusto Trevisan, Maurizio Ruscio, Serena Bonin   +3 more
doaj   +2 more sources

Characterising the Gut Microbiomes in Wild and Captive Short-Beaked Echidnas Reveals Diet-Associated Changes

Frontiers in Microbiology, 2022
The gut microbiome plays a vital role in health and wellbeing of animals, and an increasing number of studies are investigating microbiome changes in wild and managed populations to improve conservation and welfare. The short-beaked echidna (Tachyglossus
Tahlia Perry, Tahlia Perry, Ella West, Raphael Eisenhofer, Alan Stenhouse, Isabella Wilson, Belinda Laming, Peggy Rismiller, Peggy Rismiller, Michelle Shaw, Michelle Shaw, Frank Grützner, Frank Grützner   +12 more
doaj   +1 more source