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Dynamics of Laterality in the Cuttlefish Sepia recurvirostra through Interactions with Prey Prawns. 通过与被捕食对虾的相互作用,墨鱼侧性的动态变化。
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-12-01 DOI: 10.2108/zs220022
Nahid Sultana Lucky, Kristine Joy L Tandang, Michelle B Tumilba, Ryo Ihara, Kosaku Yamaoka, Masaki Yasugi, Michio Hori
{"title":"Dynamics of Laterality in the Cuttlefish <i>Sepia recurvirostra</i> through Interactions with Prey Prawns.","authors":"Nahid Sultana Lucky,&nbsp;Kristine Joy L Tandang,&nbsp;Michelle B Tumilba,&nbsp;Ryo Ihara,&nbsp;Kosaku Yamaoka,&nbsp;Masaki Yasugi,&nbsp;Michio Hori","doi":"10.2108/zs220022","DOIUrl":"https://doi.org/10.2108/zs220022","url":null,"abstract":"<p><p>Predator-prey interactions based on laterality have recently been observed between fishes and their prey populations. Maintenance of antisymmetric dimorphism by frequency-dependent selection has been reported in fish, but has not been observed in invertebrates. Over 10 years, we investigated long-term changes in the \"ratio of laterality\" (frequency of righty morphs in a population) in the cuttlefish <i>Sepia recurvirostra</i> and its potential prey prawns <i>Penaeus semisulcatus</i> and <i>Metapenaeus endeavouri</i> in the Visayan Sea, the Philippines. The morphological laterality of cuttlefish and prey prawns was defined by measuring the asymmetry of the cuttlebone and carapace, respectively. Cuttlefish and prey prawns showed morphological antisymmetry, being composed with righty morphs and lefty morphs. The ratio of laterality of cuttlefish and one prey prawn oscillated significantly, but the oscillation was not strongly synchronized. The ratio of laterality of cuttlefish followed that of the prey prawn, indicating that predation biased to each laterality occurred in relation to their laterality. These results suggest that the lateral dimorphism of cuttlefish is maintained through frequency-dependent selection on lateral morphs of the predator cuttlefish and prey prawns. Our findings provide new insight into the ecological significance and antisymmetry maintenance mechanism in relation to interspecific interactions in marine invertebrates.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 6","pages":"545-553"},"PeriodicalIF":0.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10702853","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
Female Preference for Males Varies with Resource Availability for Reproduction in the Freshwater Goby Tridentiger brevispinis. 淡水虾虎鱼雌性对雄性的偏好随繁殖资源的可得性而变化。
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-12-01 DOI: 10.2108/zs210100
Daisuke Takahashi
{"title":"Female Preference for Males Varies with Resource Availability for Reproduction in the Freshwater Goby <i>Tridentiger brevispinis</i>.","authors":"Daisuke Takahashi","doi":"10.2108/zs210100","DOIUrl":"https://doi.org/10.2108/zs210100","url":null,"abstract":"<p><p>Animals with resource-based breeding systems show varying sexual selection modes driven by resource availability. Males of the freshwater goby <i>Tridentiger brevispinis</i> (Pisces: Gobiidae), which are larger, with a longer dorsal-fin, than females, make nests under stones, and provide exclusive parental care of eggs in the nests. For this goby, the nest sites are crucial resources for reproduction. Laboratory experiments that controlled for nest-site abundance were conducted to investigate the effects of nest-site availability on male-male competition and female mate choice. Nest-holding males were on average larger than the average size of all males combined under conditions of low nest-site availability. This result indicates a greater advantage for large males in intrasexual competition for nest sites under conditions of low nest-site availability. Furthermore, egg-guarding males under conditions of low nest-site availability were larger than nest-holding males without eggs. Under conditions of high nest-site availability, the dorsal-fin length of nest-holding males with eggs were longer than those without eggs. These findings suggest that female preference for mates varies qualitatively with nest-site availability. This variation in female preference might result from mate availability that depends upon nest-site availability. The current study concludes that in nest-spawning fishes, nest-site availability can affect the intensity of male-male competition and cause variations of female preference for mates.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 6","pages":"507-513"},"PeriodicalIF":0.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10383533","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
Transcriptome Analysis in a Scleractinian Coral, Acropora tenuis, during the Spawning Season With Reference to the Gonadal Condition. 一种硬核珊瑚(Acropora tenuis)在产卵季节的转录组分析与性腺状况的关系。
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-12-01 DOI: 10.2108/zs220016
Hiroki Takekata, Hirono Hamazato, Tan Ee Suan, Ryotaro Izumi, Hajime Yaguchi, Masatoshi Matsunami, Naoko Isomura, Akihiro Takemura
{"title":"Transcriptome Analysis in a Scleractinian Coral, <i>Acropora tenuis</i>, during the Spawning Season With Reference to the Gonadal Condition.","authors":"Hiroki Takekata,&nbsp;Hirono Hamazato,&nbsp;Tan Ee Suan,&nbsp;Ryotaro Izumi,&nbsp;Hajime Yaguchi,&nbsp;Masatoshi Matsunami,&nbsp;Naoko Isomura,&nbsp;Akihiro Takemura","doi":"10.2108/zs220016","DOIUrl":"https://doi.org/10.2108/zs220016","url":null,"abstract":"<p><p>Synchronous spawning is a striking feature of coral. Although it is important for reproductive success, corals reallocate energy for reproduction to growth when they are damaged by external stimuli. To assess the transcriptome before and after spawning in the scleractinian coral <i>Acropora tenuis</i>, we tagged three colonies (one bleached and two unbleached) in the field around Sesoko Island (Okinawa, Japan) in November 2016, sampled them monthly from May to July 2017, and performed RNA sequencing (RNA-Seq) analysis. Histological analysis revealed that the previously bleached colony possessed gametes in June, by which time the other two colonies had already spawned. In RNA-Seq analyses, multi-dimensional scaling based on gene expression similarity among the samples reflected the differences between colonies and between months except for the sample of a non-spawned colony in May, which was similar to the samples in June. The similarity of the non-spawned colony sample in May to the samples in June was also shown in hierarchical clustering based on the expression patterns of the genes that were differentially expressed between months in the spawned colonies. These results suggest that non-spawning was already decided in May, and that the physiological condition in a non-spawned colony in May was advanced to June. RNA-Seq analysis also showed that genes related to gametogenesis and those related to apoptosis were upregulated before and after spawning, respectively.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 6","pages":"570-580"},"PeriodicalIF":0.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10414307","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
An Indirect Cost of Male-Male Aggression Arising from Female Response. 由女性反应引起的男性-男性攻击的间接代价。
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-12-01 DOI: 10.2108/zs210116
Toshiki Yoshimizu, Junichi Akutsu, Takashi Matsuo
{"title":"An Indirect Cost of Male-Male Aggression Arising from Female Response.","authors":"Toshiki Yoshimizu,&nbsp;Junichi Akutsu,&nbsp;Takashi Matsuo","doi":"10.2108/zs210116","DOIUrl":"https://doi.org/10.2108/zs210116","url":null,"abstract":"<p><p>Animal behavior is often polymorphic between individuals within a population. A cost/benefit balance of a particular behavioral pattern may be influenced by social interaction with other individuals with different behavioral patterns. Males of a fruitfly, <i>Drosophila prolongata</i>, show genetically defined polymorphism in aggressiveness and boldness against rival males. Males of the H strain are highly aggressive, and their fights tend to escalate into boxing, the highest level of aggressive interaction. H males are also bold against sneaker males and do not hesitate to perform leg vibration (LV), a courtship behavior that is vulnerable to interception of the female by surrounding rival males. In contrast, males of the L strain rarely engage in boxing and do not perform LV in the presence of rival males. We examined their mating success in small experimental populations. The mating success of L males was higher in a pure L population than in a mixed population with H males, whereas that of H males was higher in a mixed population than in a pure H population. Notably, this 'cost of aggression' in a pure H population seemed not directly derived from the male-to-male interaction but was imposed by the female's response of escaping from fighting males, compromising the benefit of the resource monopolization as territory.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 6","pages":"514-520"},"PeriodicalIF":0.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10702851","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: 3
Acoustic Characteristics of Songs in a Recently Established Population of the Japanese Bush Warbler on an Oceanic Island. 在一个大洋岛屿上新建立的日本丛林莺种群的歌声声学特征。
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-12-01 DOI: 10.2108/zs220028
Shoji Hamao
{"title":"Acoustic Characteristics of Songs in a Recently Established Population of the Japanese Bush Warbler on an Oceanic Island.","authors":"Shoji Hamao","doi":"10.2108/zs220028","DOIUrl":"https://doi.org/10.2108/zs220028","url":null,"abstract":"<p><p>The acoustic structure of birdsongs is determined by ecological and social factors. Moreover, the founder effect can occur when a few colonizers bring a small subset of the song diversity from a source population to a newly established population, generating the acoustic features of its songs. Around 2000, the Japanese bush warbler (<i>Cettia diphone</i>) naturally colonized Minami-Daito, an oceanic island in the northwest Pacific. This raises the question of whether the songs in this population have changed through adaptation to the insular environment or maintained the features of songs in the mainland population. In this study, the acoustic characteristics of Japanese bush warbler songs on Minami-Daito Island at present (i.e., approximately 20 years after colonization) were compared with the songs of conspecifics on the mainland and another island. The acoustic structure of one of two basic song types on this island did not differ from that on the mainland. The other song type had a simpler structure on the island than on the mainland. Analyses of intonation structure showed that a certain pattern of frequency increase and decrease among sound elements was rare (< 10%) on the mainland but dominant on the island. The song characteristics substantially overlapped between the island and the mainland, and have not changed on the island since its colonization. These results suggest that the song characteristics on Minami-Daito Island can be explained by the founder effect. The songs on this island may change adaptively over a long period. Continuous investigation to follow the changes is required.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 6","pages":"521-528"},"PeriodicalIF":0.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10450568","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
Taxonomic Accounts and Phylogenetic Positions of the Far East Asian Centipedes Scolopocryptops elegans and S. curtus (Chilopoda: Scolopendromorpha). 远东蜈蚣的分类记述及系统发育地位(足总目:蜈蚣目)。
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-12-01 DOI: 10.2108/zs220029
Taro Jonishi, Takafumi Nakano
{"title":"Taxonomic Accounts and Phylogenetic Positions of the Far East Asian Centipedes <i>Scolopocryptops elegans</i> and <i>S. curtus</i> (Chilopoda: Scolopendromorpha).","authors":"Taro Jonishi,&nbsp;Takafumi Nakano","doi":"10.2108/zs220029","DOIUrl":"https://doi.org/10.2108/zs220029","url":null,"abstract":"<p><p>The epigean centipede genus <i>Scolopocryptops</i> Newport, 1844 consists of two monophyletic lineages, the \"Asian/North American\" and \"Neotropical/Afrotropical\" groups. Most of the \"Asian/North American\" species bear the complete sulcus/sulci along the lateral margin of the cephalic plate and sternites lacking sulci, whereas Japanese <i>Scolopocryptops elegans</i> (Takakuwa, 1937) bears short lateral sulci on the cephalic plate and Taiwanese <i>Scolopocryptops curtus</i> (Takakuwa, 1939) lacks the cephalic marginal sulci, and both species bear a longitudinal sternal sulcus. The taxonomic accounts of <i>S. elegans</i> and <i>S. curtus</i> were revisited in this study based on newly collected specimens. We found that these two species share a characteristic of the second maxilla, that they lack the transparent margin on the dorsal brush, which distinguishes them from other \"Asian/North American\" species. <i>Scolopocryptops elegans</i> and <i>S. curtus</i> can be distinguished from each other by the characters of their antennal articles, cephalic plate, forcipular coxosternite, tergite 23, and coxopleuron. Phylogenetic analyses using nuclear 28S ribosomal RNA and mitochondrial cytochrome <i>c</i> oxidase subunit I sequences confirmed that <i>S. elegans</i> and <i>S. curtus</i> are closely related and form a single clade sister to a clade comprising all the other \"Asian/North American\" <i>Scolopocryptops</i> species.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 6","pages":"581-593"},"PeriodicalIF":0.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10450569","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
Use of Visual Information by Ant Species Occurring in Similar Urban Anthropogenic Environments. 发生在相似城市人为环境中的蚂蚁物种对视觉信息的利用。
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-12-01 DOI: 10.2108/zs220035
Yusuke Notomi, Tomoki Kazawa, So Maezawa, Ryohei Kanzaki, Stephan Shuichi Haupt
{"title":"Use of Visual Information by Ant Species Occurring in Similar Urban Anthropogenic Environments.","authors":"Yusuke Notomi,&nbsp;Tomoki Kazawa,&nbsp;So Maezawa,&nbsp;Ryohei Kanzaki,&nbsp;Stephan Shuichi Haupt","doi":"10.2108/zs220035","DOIUrl":"https://doi.org/10.2108/zs220035","url":null,"abstract":"<p><p>Many insects, including ants, are known to respond visually to conspicuous objects. In this study, we compared orientation in an arena containing only a black target beacon as local information in six species of ants of widely varying degree of phylogenic relatedness, foraging strategy, and eye morphology (<i>Aphaenogaster</i>, <i>Brachyponera</i>, <i>Camponotus</i>, <i>Formica</i>, and two <i>Lasius</i> spp.), often found associated in similar urban anthropogenic habitats. Four species of ants displayed orientation toward the beacon, with two orienting toward it directly, while the other two approached it via convoluted paths. The two remaining species did not show any orientation with respect to the beacon. The results did not correlate with morphological parameters of the visual systems and could not be fully interpreted in terms of the species' ecology, although convoluted paths are linked to higher significance of chemical signals. Beacon aiming was shown to be an innate behavior in visually naive <i>Formica</i> workers, which, however, were less strongly attracted to the beacon than older foragers. Thus, despite sharing the same habitats and supposedly having similar neural circuits, even a very simple stimulus-related behavior in the absence of other information can differ widely in ants but is likely an ancestral trait retained especially in species with smaller eyes. The comparative analysis of nervous systems opens the possibility of determining general features of circuits responsible for innate and possibly learned attraction toward particular stimuli.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 6","pages":"529-544"},"PeriodicalIF":0.9,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10414311","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
Ontogenetic Expressions of Sexually Dimorphic Traits in the Skeleton Shrimp Caprella scaura (Crustacea: Amphipoda). 骨虾两性二形性状的个体发育表达(甲壳纲:片足纲)。
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-10-01 DOI: 10.2108/zs220038
Yohei Otomo, Junpei Shinji, Hisanori Kohtsuka, Toru Miura
{"title":"Ontogenetic Expressions of Sexually Dimorphic Traits in the Skeleton Shrimp <i>Caprella scaura</i> (Crustacea: Amphipoda).","authors":"Yohei Otomo,&nbsp;Junpei Shinji,&nbsp;Hisanori Kohtsuka,&nbsp;Toru Miura","doi":"10.2108/zs220038","DOIUrl":"https://doi.org/10.2108/zs220038","url":null,"abstract":"<p><p>In sexual dimorphism, males often exhibit exaggerated characters as weapons or ornaments. Among the numerous amphipod species (Amphipoda, Crustacea) showing sexual dimorphism, caprellids (Caprellidae) are characterized by considerably larger males that possess weapons, although the developmental processes underlying these sex-related differences are largely unknown. Therefore, to clarify the process of sexual differentiation during postembryonic development in caprellids, morphometric analyses of <i>Caprella scaura</i> were conducted. Principal component analysis using 31 morphometric traits showed drastic allometric changes occurring at two ontogenetic body length (BL) points (i.e., 3.8 and 8.8 mm). In individuals larger than 3 mm, head spines appeared in both sexes, and penises did only in males, allowing the discrimination of juveniles from larvae. Moreover, in larger males (BL > 8.8 mm), traits used in reproductive behavior, i.e., the first antenna, second gnathopod, and first to fifth pereonites, were extremely exaggerated. Observations of pre-copulatory behavior along with morphological assays revealed that sexually mature males could be identified by the size ratio between the triangular projection and palmar spine on the propodus of the second gnathopod. In contrast, female maturation could be determined by the marginal setae of oostegites forming a brood pouch. The body size distribution of sexually mature females was concentrated within a narrow range of BLs (6-9 mm), whereas that of sexually mature males showed a broader range (BL 9-18 mm), suggesting that, in <i>C. scaura</i>, males continue to molt and grow even after sexual maturation via indeterminate growth, to increase their lifetime reproductive success.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 5","pages":"431-445"},"PeriodicalIF":0.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33493415","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
Topotype-Based Chromosomal Diversity among Five Species of Freshwater Armored Catfishes in the Hypostomus auroguttatus Supergroup (Actinopterygii: Siluriformes). 基于拓扑型的五种淡水铠形鲶鱼auroguttatus超群的染色体多样性
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-10-01 DOI: 10.2108/zs210103
Marceléia Rubert, Fábio Hiroshi Takagui, Kátia Fabiana Dos Santos, Luis Ricardo Santana Pompeo, Renata da Rosa, Claudio Henrique Zawadzki, Sandra Mariotto, Lucas Baumgärtner, Orlando Moreira-Filho, Lucia Giuliano-Caetano
{"title":"Topotype-Based Chromosomal Diversity among Five Species of Freshwater Armored Catfishes in the <i>Hypostomus auroguttatus</i> Supergroup (Actinopterygii: Siluriformes).","authors":"Marceléia Rubert,&nbsp;Fábio Hiroshi Takagui,&nbsp;Kátia Fabiana Dos Santos,&nbsp;Luis Ricardo Santana Pompeo,&nbsp;Renata da Rosa,&nbsp;Claudio Henrique Zawadzki,&nbsp;Sandra Mariotto,&nbsp;Lucas Baumgärtner,&nbsp;Orlando Moreira-Filho,&nbsp;Lucia Giuliano-Caetano","doi":"10.2108/zs210103","DOIUrl":"https://doi.org/10.2108/zs210103","url":null,"abstract":"<p><p>Freshwater catfishes from the genus <i>Hypostomus</i> have been models for several cytogenetic studies, due to their intense variability in diploid number, chromosome morphology, and the distribution of repetitive DNAs. Taking into consideration the taxonomic complexity inherent to this group, the present study aims to describe the karyotypes of five species of <i>Hypostomus</i> collected in their type localities: <i>Hypostomus albopunctatus</i> (Regan, 1908), <i>Hypostomus hermanni</i> (Ihering, 1905), <i>Hypostomus iheringii</i> (Regan, 1908), and <i>Hypostomus paulinus</i> (Ihering, 1905) from the Piracicaba River (the Upper Paraná River Basin); and <i>Hypostomus mutucae</i> Knaack, 1999 from the Claro River (the Upper Paraguay River Basin). Our results evidenced a great inter-specific diploid-number variation: 2n = 72 (<i>H. hermanni</i>); 2n = 74 (<i>H. albopunctatus</i>); 2n = 76 (<i>H. paulinus</i>); 2n = 80 (<i>H. iheringii</i>); and 2n = 82 (<i>H. mutucae</i>), which reflects the important role of Robertsonian rearrangements in the karyotypic differentiation among these species. The distribution of heterochromatin also varied considerably among species, making it possible to distinguish each analyzed species, as well as to detect microstructural variations among populations of the same species. These data can support taxonomic revisions when further associated with molecular markers and morphological analyses to delimit, more consistently, the taxonomic status of these <i>Hypostomus</i> species, which have a complex taxonomic diagnosis history.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 5","pages":"446-452"},"PeriodicalIF":0.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33493416","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
A New Polychaete, Scolelepis (Parascolelepis) Brunnea sp. nov. (Annelida: Spionidae), from Korea. 一种新的多毛动物,Scolelepis(Parascolepis)Brunnea sp.nov.(环节动物纲:蜘蛛科),产于韩国。
IF 0.9 4区 生物学
Zoological Science Pub Date : 2022-10-01 DOI: 10.2108/zs220031
Geon Hyeok Lee, Gi-Sik Min
{"title":"A New Polychaete, <i>Scolelepis</i> (<i>Parascolelepis</i>) <i>Brunnea</i> sp. nov. (Annelida: Spionidae), from Korea.","authors":"Geon Hyeok Lee,&nbsp;Gi-Sik Min","doi":"10.2108/zs220031","DOIUrl":"https://doi.org/10.2108/zs220031","url":null,"abstract":"<p><p>A new spionid polychaete, <i>Scolelepis</i> (<i>Parascolelepis</i>) <i>brunnea</i> sp. nov., from an intertidal mud flat in Korean waters, is reported. The new species is unique among species of <i>Scolelepis</i> Blainville, 1828 in having conspicuously long, reddish-brown branchiae on the anteriormost chaetigers. The new species is morphologically and genetically most closely related to <i>Scolelepis</i> (<i>Parascolelepis</i>) <i>anterobranchiata</i> Lee and Min, 2022 from Korea. However, the new species differs from the latter by a combination of the following characteristics: presence of reddish-brown pigmentations on anteriormost body, neuropodial hooded hooks appearing from chaetigers 21 to 22, larger size of worms, and three teeth above the main fang of neuropodial hooded hooks. Detailed description and images of the new species, along with three gene regions (cytochrome <i>c</i> oxidase subunit I [COI], 16S ribosomal DNA [16S rDNA], and 18S rDNA), are provided.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"39 5","pages":"500-506"},"PeriodicalIF":0.9,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33493842","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
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