The megascolecid earthworms of the Phu Quoc island are intensively investigated. Twelve species in three genera ( Kinberg, 1867, Kinberg, 1867, and Sims & Easton, 1972) are recorded. Of these, Bantaowong & Panha, 2016 is recorded for the first time in Vietnam, and three species are newly described, namely , , and An identification key to 12 megascolecid species is provided as well.
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http://dx.doi.org/10.3897/zookeys.932.50314 | DOI Listing |
Zoology (Jena)
October 2023
Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Bankowa 9, 40-007 Katowice, Poland.
Mol Phylogenet Evol
May 2023
Department of Zoology, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan. Electronic address:
Megascolecid earthworms of the pheretimoid group are dominant detritivores of soil ecosystems in the Japanese Archipelago and East Asia. However, their diversity and phylogenetic relationships are poorly understood. We assembled whole mitogenome sequences for 197 megascolecid earthworms collected throughout Japan to study the phylogenetic relationships, phylogeography, divergence times, and diversification of important morphological characteristics among pheretimoid earthworms.
View Article and Find Full Text PDFTerrestrial resource pulses can significantly affect the community dynamics of freshwater ecosystems. Previously, its effect on the river community is considered to be stronger in summer, whereas weaker in winter when terrestrial invertebrates are less abundant. The movement of the terrestrial earthworms is triggered in winter, so they may be supplied to winter rivers as terrestrial resource pulse, but little is known about it.
View Article and Find Full Text PDFFront Microbiol
April 2022
Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia.
Like many other aquatic animals, freshwater planarians have also become partners of symbiotic ciliates from the class Oligohymenophorea. In the present study, we explored the hidden diversity and addressed the questionable systematic position of mouthless obligatory gut endosymbionts of freshwater planarians, using the nuclear and mitochondrial SSU rRNA genes. Although all isolated ciliates morphologically corresponded to a single species, molecular analyses suggested the existence of three genetically distinct entities: , nov.
View Article and Find Full Text PDFFront Microbiol
June 2021
Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia.
Coevolution of endosymbionts with their hosts plays an important role in the processes of speciation and is among the most fascinating topics in evolutionary biology. Astome ciliates represent an interesting model for coevolutionary studies because they are so tightly associated with their host organisms that they completely lost the cell oral apparatus. In the present study, we used five nuclear markers (18S rRNA gene, ITS1-5.
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