Zoological Science最新文献_第9页

Molecular Phylogeny and Taxonomy of the Coral Genus Cyphastrea (Cnidaria, Scleractinia, Merulinidae) in Japan, With the First Records of Two Species. 日本Cyphastrea珊瑚属(刺胞目，硬核科，细壳科)的分子系统发育与分类，并附两种首次记录。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-08-01 DOI: 10.2108/zs230009

Thanapat Chukaew, Naoko Isomura, Takuma Mezaki, Hisashi Matsumoto, Yuko F Kitano, Yoko Nozawa, Hiroyuki Tachikawa, Hironobu Fukami

{"title":"Molecular Phylogeny and Taxonomy of the Coral Genus Cyphastrea (Cnidaria, Scleractinia, Merulinidae) in Japan, With the First Records of Two Species.","authors":"Thanapat Chukaew, Naoko Isomura, Takuma Mezaki, Hisashi Matsumoto, Yuko F Kitano, Yoko Nozawa, Hiroyuki Tachikawa, Hironobu Fukami","doi":"10.2108/zs230009","DOIUrl":"https://doi.org/10.2108/zs230009","url":null,"abstract":"The scleractinian coral genus Cyphastrea is widely distributed in the Indo-Pacific region and is common from the subtropical to the warm-temperate regions in Japan. Three new species in this genus have recently been reported from south-eastern Australia or the Red Sea. However, taxonomic and species diversity have been little studied so far in Japan. In this study, we analyzed 112 specimens of Cyphastrea collected from the subtropical to the warm-temperate regions in Japan to clarify the species diversity in the country. This analysis was based on skeletal morphological and molecular analyses using three genetic markers of the nuclear 28S rDNA, histone H3 gene, and the mitochondrial noncoding intergenic region between COI and tRNAmet. The molecular phylogenetic trees showed that our specimens are separated mainly into four clades. Considering the morphological data with the molecular phylogenetic relationships, we confirmed a total of nine species, including two species, C. magna and C. salae, recorded for the first time in Japan. Although eight out of nine species were genetically included within Cyphastrea, one species, C. agassizi, was genetically distant from all other species and was closely related to the genus Leptastrea, suggesting the return of this species to the genus to which it was originally ascribed. Two newly recorded species were reciprocally monophyletic, while the other six species (excluding C. agassizi) clustered in two clades without forming species-specific lineages, including three polyphyletic species. Thus, the species boundary between species in Cyphastrea remains unclear in most species using these three sequenced loci.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 4","pages":"326-340"},"PeriodicalIF":0.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9910765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

To Mob or Not to Mob: Habitat and Time of Day Influence in Mobbing Behavior in the Azure-Winged Magpie (Cyanopica cookii). 群居或不群居:生境和时间对蓝翅喜鹊(Cyanopica cookii)群居行为的影响。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-08-01 DOI: 10.2108/zs230004

M Carmen Hernández, Rafael Ayala Lara, Alberto J Redondo

{"title":"To Mob or Not to Mob: Habitat and Time of Day Influence in Mobbing Behavior in the Azure-Winged Magpie (Cyanopica cookii).","authors":"M Carmen Hernández, Rafael Ayala Lara, Alberto J Redondo","doi":"10.2108/zs230004","DOIUrl":"https://doi.org/10.2108/zs230004","url":null,"abstract":"While mobbing, individuals utter distinctive calls and perform visual threatening displays. Like any other antipredatory strategies, it involves some costs (time, energy, injuries, and even death). Therefore, mobbing would be expected to vary depending on the perceived magnitude of the predation risk. Moreover, harassment behavior can also serve as a demonstration of social status and to teach juveniles to recognize predators and related behaviors. Therefore, mobbing could also persist even when predation risk is particularly low. To test our hypotheses, we used tawny owl playbacks and a taxidermy mount to elicit the mobbing response in azure-winged magpies throughout the daylight period. To classify mobbing intensity, we created five categories depending on the proximity to the owl model at which the mobbing was performed. The results revealed that mobbing behavior in azure-winged magpies was more intense where predation risk was higher: in the most suitable habitat for the tawny owl, the forest, although considerable levels of mobbing were found in the dehesa and the ecotone, which indicate that mobbing has different purposes. However, we did not find statistically significant differences in mobbing intensity depending on the time of the day. We could not show a daily adjustment of antipredator response, but magpies modulated mobbing depending on the perceived risk linked to the habitat.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 4","pages":"273-277"},"PeriodicalIF":0.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9910763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Populations of the Intertidal Crab Macrophthalmus banzai are Not Grouped by Latitude: Taiwan Population is Genetically Closer to the Populations in the Japanese Mainland Than the Ryukyu Islands. 潮间带巨眼蟹种群不按纬度划分：台湾种群与日本大陆种群的亲缘关系比与琉球群岛的亲缘关系更近。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-08-01 DOI: 10.2108/zs220117

Genki Kobayashi, Hirokazu Abe, Masahiro Suzuki, Kenji Okoshi, Hsing-Juh Lin, Tung-Yun Chen, Waka Sato-Okoshi

{"title":"Populations of the Intertidal Crab Macrophthalmus banzai are Not Grouped by Latitude: Taiwan Population is Genetically Closer to the Populations in the Japanese Mainland Than the Ryukyu Islands.","authors":"Genki Kobayashi, Hirokazu Abe, Masahiro Suzuki, Kenji Okoshi, Hsing-Juh Lin, Tung-Yun Chen, Waka Sato-Okoshi","doi":"10.2108/zs220117","DOIUrl":"10.2108/zs220117","url":null,"abstract":"Macrophthalmus banzai is an intertidal crab species of Macrophthalmidae inhabiting muddy tidal flats in the northwestern Pacific. A previous study on the population genetic structure of Japanese M. banzai based on the mitochondrial COI gene sequences revealed the presence of two genetically distinguished groups, i.e., the northern group (Honshu, Shikoku, and Kyushu Islands) and the southern group (the Ryukyu Islands). In the present study, we newly determined the COI gene sequences of M. banzai collected from Taiwan and conducted population genetic analyses of these sequences together with Japanese sequences obtained from GenBank to reveal the genetic relationship of this species between Japan and Taiwan. The SAMOVA and pairwise ΦST analysis showed that the Taiwan population is more closely related to the northern group than the southern group. This indicates that the populations of M. banzai are not genetically differentiated by latitude but probably by the pathway of the Kuroshio Current, resulting in the isolation of the population in the Ryukyu Islands. Such a pattern is consistent with the population genetic structure of the fiddler crab Tubuca arcuata shown by a previous study, whereas the pattern differs from those of other intertidal invertebrates. The difference in the larval durations may have influenced the difference in population genetic structures among species. The present study provides a further case of the genetic structure of intertidal species that are not simply regulated by geographic distances.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 4","pages":"278-283"},"PeriodicalIF":0.9,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10274220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contrasting Size Distributions among the Wing Spots of a Pierid Butterfly Suggest Different Selective Histories. 蝴蝶翅斑大小分布的对比表明不同的选择历史。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220087

Yoshiaki Obara, Ronald Rutowski

引用次数: 0

Phototaxis in Two Shallow-Water Zeuxo Species (Crustacea: Tanaidacea). 两种浅水斑马鱼的趋光性(甲壳纲:斑马鱼科)。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220118

Nobuya Okamoto, Keiichi Kakui

引用次数: 0

A New Species of Bisexual Milnesium (Eutardigrada: Apochela) Having Aberrant Claws from Innhovde, Dronning Maud Land, East Antarctica. 东南极洲因霍夫德、Dronning Maud地双性恋千禧年目一新种(真水目:足足目)有异常爪。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220085

Atsushi C Suzuki, Kenta Sugiura, Megumu Tsujimoto, Ryosuke Nakai, Sandra J McInnes, Hiroshi Kagoshima, Satoshi Imura

引用次数: 0

Molecular Phylogeny of Thoracotreme Crabs Including Nine Newly Determined Mitochondrial Genomes. 胸甲目蟹的分子系统发育，包括9个新发现的线粒体基因组。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220063

Genki Kobayashi, Hajime Itoh, Nobuyoshi Nakajima

{"title":"Molecular Phylogeny of Thoracotreme Crabs Including Nine Newly Determined Mitochondrial Genomes.","authors":"Genki Kobayashi, Hajime Itoh, Nobuyoshi Nakajima","doi":"10.2108/zs220063","DOIUrl":"https://doi.org/10.2108/zs220063","url":null,"abstract":"Mitochondrial genomes are used widely for the molecular phylogenetic analysis of animals. Although phylogenetic analyses based on the mitogenomes of brachyurans often yield well-resolved phylogenies, most interfamilial phylogenetic relationships in Thoracotremata remain unclear. We determined nine new mitogenomes of Thoracotremata, including mitogenomes of Camptandriidae (Deiratonotus japonicus), Dotillidae (Ilyoplax integra, Ilyoplax pusilla, and Tmethypocoelis choreutes), Macrophthalmidae (Ilyograpsus nodulosus), Pinnotheridae (Arcotheres sp. and Indopinnixa haematosticta), Plagusiidae (Guinusia dentipes), and Percnidae (Percnon planissimum). Interestingly, Percnon planissimum (Percnidae) was found to possess ≥ 19 repeated sequences in the control region. The gene orders of Il. nodulosus, Arcotheres sp., and In. haematosticta were revealed to be unique among thoracotreme crabs. Although the results of Bayesian and maximum likelihood (ML) phylogenetic analyses of three datasets were incongruent, highly supported clades (PP ≥ 0.99 or BS ≥ 99%) were not contradictory among the analyses. All analyses suggested the paraphyly of Grapsoidea and Ocypodoidea, corroborating the findings of previous studies based on molecular phylogenies of thoracotreme crabs. The phylogenetic positions of symbiotic thoracotreme crabs, Pinnotheridae and Cryptochiridae, were highly supported (Pinnotheridae + Ocypodidae and Cryptochiridae + Grapsidae, respectively) for the Bayesian analyses but not for the ML analyses. Analyses of more thoracotreme species' mitogenome sequences in additional studies will further strengthen the framework for thoracotreme evolution.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 3","pages":"224-234"},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9561950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Establishment of a New Model Sea Anemone for Comparative Studies on Cnidarian-Algal Symbiosis. 一种新模式海葵的建立及刺胞-藻类共生比较研究。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220099

Yukie Mihirogi, Michika Kaneda, Daisuke Yamagishi, Yuu Ishii, Shinichiro Maruyama, Sumika Nakamura, Natsuno Shimoyama, Chihiro Oohori, Masayuki Hatta

{"title":"Establishment of a New Model Sea Anemone for Comparative Studies on Cnidarian-Algal Symbiosis.","authors":"Yukie Mihirogi, Michika Kaneda, Daisuke Yamagishi, Yuu Ishii, Shinichiro Maruyama, Sumika Nakamura, Natsuno Shimoyama, Chihiro Oohori, Masayuki Hatta","doi":"10.2108/zs220099","DOIUrl":"https://doi.org/10.2108/zs220099","url":null,"abstract":"Frequent coral bleaching has drawn attention to the mechanisms of coral dinoflagellate endosymbiosis. Owing to the difficulty of rearing corals in the laboratory, model symbiosis systems are desired. The sea anemone Exaiptasia diaphana, hosting clade B1 of the genus Breviolum, has long been studied as a model system; however, a single species is insufficient for comparative studies and thus provides only limited resources for symbiosis research, especially regarding the specificity of host-symbiont associations. We established a clonal strain of the sea anemone Anthopleura atodai, whose symbiont was identified as a novel subclade of Symbiodinium (clade A) using a novel feeding method. We also developed a method to efficiently bleach various sea anemone species using a quinoclamine-based herbicide. Bleached A. atodai polyps were vital and able to reproduce asexually, exhibiting no signs of harmful effects of the drug treatment. Pilot studies have suggested that host-symbiont specificity is influenced by multiple steps differently in A. atodai and E. diaphana. RNAseq analyses of A. atodai showed that multiple NPC2 genes were expressed in the symbiotic state, which have been suggested to function in the transport of sterols from symbionts to host cells. These results reveal the usefulness of A. atodai in comparative studies of cnidarian-algal symbiosis.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 3","pages":"235-245"},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9561948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Landscape Genetic Analysis for the Japanese Wild Boar in the Early Expanding Stage in the Hokuriku Region of Japan. 日本北陆地区扩大初期日本野猪景观遗传分析。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220082

Yuji Yamazaki, Daisuke Shimizu, Takumi Watanabe

{"title":"Landscape Genetic Analysis for the Japanese Wild Boar in the Early Expanding Stage in the Hokuriku Region of Japan.","authors":"Yuji Yamazaki, Daisuke Shimizu, Takumi Watanabe","doi":"10.2108/zs220082","DOIUrl":"https://doi.org/10.2108/zs220082","url":null,"abstract":"As a contribution to improving management of the Japanese wild boar (Sus scrofa leucomystax), which has recently expanded its range and is having some negative effects on the ecosystem, we conducted a landscape genetic study using individual-based genetic analysis and multiple landscape elements to elucidate its dispersal patterns in the early stage of its expansion. Microsatellite DNA analysis of Japanese wild boars in the Hokuriku region of Japan revealed the existence of two ancestral genetic clusters, that they had migrated via different pathways, and that they were inadequately admixed. We also inferred the most suitable habitats for Japanese wild boar using MaxEnt and concluded that lower elevation and snowfall may favor the occurrence of wild boar individuals. Landscape genetic analysis indicated regional differences in Japanese wild boar dispersal patterns, according to the spatial heterogeneity of genetic features and landscape elements. On the western side of the study area, where individuals with a high frequency of one of two ancestral clusters were more abundant, significant effects of isolation by distance and resistance due to the above two landscape factors were detected, suggesting unidirectional dispersion influenced by the alpine landscape. In contrast, on the eastern side, there was indication of resistance to dispersal of individuals predominantly possessing another ancestral cluster, suggesting the influence of irregularly arranged suitable habitats due to the complexity of the mountainous terrain. Based on our findings, we conclude that Japanese wild boar dispersal patterns may be influenced by landscape elements, such as alpine mountains.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 3","pages":"189-196"},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9916906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theama japonica sp. nov., an Interstitial Polyclad Flatworm Showing a Wide Distribution along Japanese Coasts. 日本茶虫，一种在日本沿海广泛分布的间隙型多包覆扁虫。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220105

Aoi Tsuyuki, Yuki Oya, Naoto Jimi, Natsumi Hookabe, Shinta Fujimoto, Hiroshi Kajihara

{"title":"Theama japonica sp. nov., an Interstitial Polyclad Flatworm Showing a Wide Distribution along Japanese Coasts.","authors":"Aoi Tsuyuki, Yuki Oya, Naoto Jimi, Natsumi Hookabe, Shinta Fujimoto, Hiroshi Kajihara","doi":"10.2108/zs220105","DOIUrl":"https://doi.org/10.2108/zs220105","url":null,"abstract":"We establish a new interstitial polyclad species, Theama japonica sp. nov., based on specimens collected from coarse-sandy habitats in three Japanese main islands (Hokkaido, Honshu, and Shikoku) along the coasts of the Pacific Ocean and the Sea of Japan. Theama japonica is characterized by i) two pairs of cerebral eyespots and four to six precerebral eyespots; ii) eosinophilic secretion glands distributed in the distal half of the inner ventral part of the prostatic vesicle; iii) a conical penis papilla, bent up dorsally, with a sclerotized inner wall; iv) the prostatic sheath with an inner angular fold on the dorso-distal side; and v) the external cilia longer dorsally than ventrally. Partial sequences of the cytochrome c oxidase subunit I (COI) gene from 20 specimens collected at eight localities along Japanese coasts represented 19 haplotypes. The uncorrected p-distances among these COI haplotypes fell within intraspecific variations observed in other polyclads. A network analysis based on these COI haplotypes suggested a geographically non-cohesive genetic structure of the species, possibly indicating the species' high dispersibility. Molecular phylogenetic analyses based on a concatenated dataset of 18S and 28S rDNA sequences showed T. japonica formed a clade with other Theama species. The resulting tree also indicates that our new species is more closely related to Theama sp. from Colombia than species from Panama and Croatia.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 3","pages":"262-272"},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9561951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1