The prevalence of hemotropic mycoplasmas in wild monkeys is largely unknown. Here, we report the presence of hemoplasmas in blood specimens collected from wild Japanese monkeys (Macaca fuscata) tentatively captured for ecological survey in Mie prefecture, Japan. We examined 9 monkeys using hemoplasma-specific real-time PCR and found all of them positive for a hemoplasma infection. The 16S rRNA gene and 16S to 23S rRNA intergenic spacer region of the hemoplasma detected in wild monkeys were amplified using end-point PCR. The nucleotide sequences of the PCR products were further determined and compared to those of other hemoplasmas. Our examinations revealed a wide prevalence of a hemoplasma strain in Japanese monkeys, which was similar to 'Candidatus Mycoplasma haemomacaque' reported in cynomolgus monkeys (Macaca fascicularis). Pathogenic traits of this hemoplasma strain remain unexplored.
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http://dx.doi.org/10.1292/jvms.13-0332 | DOI Listing |
Primates
January 2025
Université de Strasbourg, IPHC UMR7178, CNRS, Strasbourg, France.
The use of complex technologies by humans (Homo sapiens) and their ancestors is a key feature of our evolution, marked by the appearance of stone tools 3.3-million years ago. These technologies reflect cognitive complexity and an advanced understanding of materials and mechanics.
View Article and Find Full Text PDFGenome Biol Evol
January 2025
Faculty of Information Science and Technology, Hokkaido University, Kita-14, Nishi-9, Kita-ku, Sapporo, Hokkaido, Japan 060-0814.
The influence of long-term climatic changes such as glacial cycles on the history of living organisms has been a subject of research for decades, but the detailed population dynamics during the environmental fluctuations and their effects on genetic diversity and genetic load are not well understood on a genome-wide scale. The Japanese macaque (Macaca fuscata) is a unique primate adapted to the cold environments of the Japanese archipelago. Despite of the past intensive research for the Japanese macaque population genetics, the genetic background of Japanese macaques at the whole-genome level has been limited to a few individuals, and the comprehensive demographic history and genetic differentiation of Japanese macaques have been underexplored.
View Article and Find Full Text PDFSci Rep
December 2024
Graduate School of Human Sciences, Osaka University, Suita, Osaka, 565-0871, Japan.
Recent evidence indicates that human ancestors utilized a combination of quadrupedal walking, climbing, and bipedal walking. Therefore, the origin of bipedalism may be linked to underlying mechanisms supporting diverse locomotor modes. This study aimed to elucidate foundations of varied locomotor modes from the perspective of motor control by identifying muscle synergies and demonstrating similarities in synergy compositions across different locomotor modes in chimpanzees and Japanese macaques.
View Article and Find Full Text PDFPrimates
December 2024
Université de Strasbourg, IPHC UMR7178, CNRS, Strasbourg, France.
Huddling behaviour is present in many animal species. This behaviour involves maintaining close physical contact with conspecifics to minimise heat loss and, in general, reduce energy expenditure. Additionally, this behaviour also facilitates complex social interactions within a population.
View Article and Find Full Text PDFPrimates
December 2024
Université de Strasbourg, IPHC, UMR7178, CNRS, Strasbourg, France.
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