Zoological Science最新文献_第9页

Cloning and Characterization of Cyp7a1 and Cyp27a1 Genes from the Non-Parasitic Japanese Lamprey Lethenteron reissneri. 非寄生日本七鳃鳗Cyp7a1和Cyp27a1基因的克隆与鉴定。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220072

Mayako Morii, Taku Hebiguchi, Ryo Watanabe, Hiroaki Yoshino, Yoshihiro Mezaki

{"title":"Cloning and Characterization of Cyp7a1 and Cyp27a1 Genes from the Non-Parasitic Japanese Lamprey Lethenteron reissneri.","authors":"Mayako Morii, Taku Hebiguchi, Ryo Watanabe, Hiroaki Yoshino, Yoshihiro Mezaki","doi":"10.2108/zs220072","DOIUrl":"https://doi.org/10.2108/zs220072","url":null,"abstract":"Two cytochrome P450 genes homologous to human CYP7A1 and CYP27A1 were cloned from the non-parasitic Japanese lamprey Lethenteron reissneri. Lamprey cyp7a1 mRNA had varied expression levels among individuals: about four orders of magnitude differences in larval liver and nearly three orders of magnitude differences in male adult liver. Overexpressed Cyp7a1 protein tagged with green fluorescent protein (GFP) was localized to the endoplasmic reticulum. Lamprey cyp27a1 mRNA had relatively constant expression levels: within two orders of magnitude differences in larvae and adult liver and intestine. GFP-tagged Cyp27a1 protein was localized to mitochondria. The expression profiles of lamprey cyp7a1 and cyp27a1 genes and the cellular localizations of their products were in good agreement with their counterparts in mammals, where these two P450s catalyze initial hydroxylation reactions of cholesterol in classical and alternative pathways of bile acid synthesis, respectively. The cyp7a1 mRNA levels in adult male liver showed significant negative correlations to both body weight and total length of the animal, implying the involvement of the gene in the production of female-attractive pheromones in sexually matured male livers. The lamprey Cyp7a1 contains a long extension of 116 amino acids between helices D and E of the protein. Possible roles of this extension in regulating the enzymatic activity of lamprey Cyp7a1 are discussed.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 3","pages":"208-218"},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9615204","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

The Bryozoan Cauloramphus magnus (Cheilostomata: Calloporidae) in Northern Japan Includes Multiple, Co-occurring Cryptic Species. 日本北部的苔藓虫(鞘翅目:栉虫科)包括多个共同发生的隐生物种。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220093

Takumi Onishi, Shimpei Hiruta, Hiroshi Kajihara, Matthew H Dick

{"title":"The Bryozoan Cauloramphus magnus (Cheilostomata: Calloporidae) in Northern Japan Includes Multiple, Co-occurring Cryptic Species.","authors":"Takumi Onishi, Shimpei Hiruta, Hiroshi Kajihara, Matthew H Dick","doi":"10.2108/zs220093","DOIUrl":"https://doi.org/10.2108/zs220093","url":null,"abstract":"The cheilostome bryozoan Cauloramphus magnus is common in the rocky intertidal habitat from southeastern Alaska to northern Japan. We examined its phylogeography by analyzing 576 bp of the mitochondrial COI (cox1) gene sequenced for 298 colonies from 16 localities in northern Japan. A maximum-likelihood phylogeny detected three main clades (A, B, C). Clades A and B occurred throughout the study area but differed in frequency, haplotype diversity, and haplotype distribution; each resolved into three divergent subclades (AI–III, BI–III). Clade A shared none among 15 haplotypes between the Pacific and Sea of Japan sides of Hokkaido. In contrast, Clade B (29 haplotypes) was thrice as common as Clade A among samples, with haplotype B28 common on both sides. Divergent Clade C (nine haplotypes) was detected only at Rumoi. K2P divergences of 12.3–28.3% among Clades A–C suggest these are distinct biological species, a conclusion supported by different inferred evolutionary histories. A bPTP species delimitation analysis indicated nine phylogenetic species among the sequences included in our phylogeny (AI–III, BI–III, C, and one specimen each from Alaska and the Commander Islands), with K2P divergences of 3.9–6.5% among subclades in A or B. Statistical and principal components analyses suggested weak morphological differentiation between Clades A + B and C, although overlapping ranges of measurements preclude identification to clade; these three clades are morphologically cryptic. For taxonomy, we suggest retaining the name C. magnus for lineages within this species complex across its range, followed by a clade designation, if known.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 3","pages":"175-188"},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9916907","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

Host Size Selection in the Ectoparasite Tachaea chinensis (Isopoda: Corallanidae) under Laboratory Conditions. 实验室条件下中华绒螯蟹(等足目:珊瑚科)寄主大小选择。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-06-01 DOI: 10.2108/zs220113

Al-Wahaibi Mohamed Khalfan, Shotaro Tani, Abdelgayed Younes, Hidetoshi Saito

{"title":"Host Size Selection in the Ectoparasite Tachaea chinensis (Isopoda: Corallanidae) under Laboratory Conditions.","authors":"Al-Wahaibi Mohamed Khalfan, Shotaro Tani, Abdelgayed Younes, Hidetoshi Saito","doi":"10.2108/zs220113","DOIUrl":"https://doi.org/10.2108/zs220113","url":null,"abstract":"Tachaea chinensis is a temporary ectoparasite infesting freshwater shrimps and prawns in eastern Asia. This study investigated the host size selection by T. chinensis across common freshwater shrimps under laboratory conditions. A total of 70 isopods were allowed to select between host shrimps of different size and different species in pairwise selection experiments. In treatments involving different sizes of the same host species, T. chinensis tended to select the medium host option in all of the four treatments. Similarly, T. chinensis demonstrated greater preference towards medium host (90%) when provided with mixed host options (medium Palaemon paucidens vs small Neocaridina spp.). However, despite the increase in the infestation proportion on medium Neocaridina spp., the isopod significantly selected the small P. paucidens when provided with a choice between medium Neocaridina spp. and small P. paucidens. In manca stage (1 day after hatch) T. chinensis treatment, the isopods showed no specific preference between large and medium Neocaridina spp. These results suggest that T. chinensis is likely to show size specificity according to the developmental stage, a size specificity that ultimately ensures adequate space for isopods' growth while maintaining a minimum risk of predation.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 3","pages":"197-202"},"PeriodicalIF":0.9,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9615205","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

Male Guppies Recognize Familiar Conspecific Males by Their Face. 雄性孔雀鱼通过面部识别熟悉的同种雄性。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-04-01 DOI: 10.2108/zs220088

Shumpei Sogawa, Rio Fukushima, Will Sowersby, Satoshi Awata, Kento Kawasaka, Masanori Kohda

{"title":"Male Guppies Recognize Familiar Conspecific Males by Their Face.","authors":"Shumpei Sogawa, Rio Fukushima, Will Sowersby, Satoshi Awata, Kento Kawasaka, Masanori Kohda","doi":"10.2108/zs220088","DOIUrl":"https://doi.org/10.2108/zs220088","url":null,"abstract":"Individual recognition is a necessary cognitive ability for the maintenance of stable social relationships. Recent studies have shown that like primates, some fish species can distinguish familiar fish from unfamiliar strangers via face-recognition. However, the taxa of the studied fish species are restricted (within Perciformes) and the visual signal used for the recognition of fish remains unclear. Here, we investigated the visual signal for individual-recognition in males of a sexually dichromatic guppy (Poecilia reticulata, Cyprinodontiformes). Using guppy males, we examined the hypothesis that fish distinguish between familiar individuals and unknown strangers by their faces rather than by body coloration. We randomly presented focal fish with four types of composite photo-models: familiar (familiar-face and familiar-body = F/F), stranger (stranger-face and stranger-body = S/S), familiar face combined with stranger body (F/S) and stranger face combined with familiar body (S/F). Focal males infrequently attacked familiar-face models but frequently attacked stranger-face models, regardless of body types. These behavioral reactions indicate that guppy males discriminate between familiar and stranger males by their face, not body coloration with wide variation. Importantly, male faces contain clear individual-variation in white/metallic colored patches on the operculum visible for humans. Considering the photo-model, our results suggest that these patches might be an important visual stimulus for face-recognition in guppy males, like some cichlids. Comparative examination among males of different guppy variants, including wild type phenotype, suggests that the face color-patch is stable regardless of variation in body color, with a different genetic mechanism potentially underlying face and body colors.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 2","pages":"168-174"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9661846","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

Acetylcholine Inhibits Spontaneous Firing Activity of Terminal Nerve GnRH Neurons in Medaka. 乙酰胆碱抑制Medaka神经末梢GnRH神经元的自发放电活性。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-04-01 DOI: 10.2108/zs220070

Aiki Tanaka, Chie Umatani, Yoshitaka Oka

{"title":"Acetylcholine Inhibits Spontaneous Firing Activity of Terminal Nerve GnRH Neurons in Medaka.","authors":"Aiki Tanaka, Chie Umatani, Yoshitaka Oka","doi":"10.2108/zs220070","DOIUrl":"https://doi.org/10.2108/zs220070","url":null,"abstract":"Vertebrates generally possess hypophysiotropic and non-hypophysiotropic gonadotropin releasing hormone (GnRH) neurons. The terminal nerve (TN) GnRH neurons are known to belong to the non-hypophysiotropic neurons and have been suggested to modulate sexual behaviors. These neurons show spontaneous pacemaker firing activity and release neuropeptides GnRH and neuropeptide FF. Since the spontaneous firing activities of peptidergic neurons, including GnRH neurons, are believed to play important roles in the release of neuropeptides, understanding the regulatory mechanisms of these spontaneous firing activities is important. Here, we analyzed firing activities of the TN-GnRH neurons in medaka during application of acetylcholine (ACh), which is one of the essential neuromodulators in the brain. Whole cell patch clamp recording of TN-GnRH neurons demonstrated that ACh induces hyperpolarization and inhibits their pacemaker firing. Electrophysiological analysis using an antagonist for acetylcholine receptors and in situ hybridization analysis showed that firing of TN-GnRH neurons is inhibited via M2-type muscarinic acetylcholine receptor. These findings, taken together with literature from several other fish species (including teleosts and elasmobranchs), indicate that ACh may generally play an inhibitory role in modulating spontaneous activities of TN-GnRH neurons and thereby sexual behaviors in fish.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 2","pages":"151-159"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9292074","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

Histological and Molecular Characterization of the Inferior Olivary Nucleus and Climbing Fibers in the Goldfish, Carassius auratus. 金鱼下橄榄核和攀爬纤维的组织学和分子特征。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-04-01 DOI: 10.2108/zs220080

Takanori Ikenaga, Shohei Morita, Thomas E Finger

{"title":"Histological and Molecular Characterization of the Inferior Olivary Nucleus and Climbing Fibers in the Goldfish, Carassius auratus.","authors":"Takanori Ikenaga, Shohei Morita, Thomas E Finger","doi":"10.2108/zs220080","DOIUrl":"https://doi.org/10.2108/zs220080","url":null,"abstract":"The cerebellum receives inputs via the climbing fibers originating from the inferior olivary nucleus in the ventral medulla. In mammals, the climbing fibers entwine and terminate onto both major and peripheral branches of dendrites of the Purkinje cells. In this study, the inferior olivary nucleus and climbing fiber in the goldfish were investigated with several histological techniques. By neural tracer application to the hemisphere of the cerebellum, labeled inferior olivary neurons were found in the ventral edge of the contralateral medulla. Kainate stimulated Co + + uptake and gephyrin immunoreactivities were found in inferior olivary neurons, indicating, respectively, that they receive both excitatory (glutamatergic) and inhibitory (GABAergic or glycinergic) inputs. Inferior olivary neurons express vglut2.1 transcripts, suggesting they are glutamatergic. Around 85% of inferior olivary neurons were labeled with anti-calretinin antiserum. Calretinin immunoreactive (ir) climbing fiber terminal-like structures were distributed near the Purkinje cells and in the molecular layer. Double labeling immunofluorescence with anti-calretinin and zebrin II antisera revealed that the calretinin-ir climbing fibers run along and made synaptic-like contacts on the major dendrites of the zebrin II-ir Purkinje cells. In teleost fish, cerebellar efferent neurons, eurydendroid cells, also lie near the Purkinje cells and extend dendrites outward to intermingle with dendrites of the Purkinje cells within the molecular layer. Here we found no contacts between the climbing fiber terminals and the eurydendroid cell dendrites. These results support the idea that Purkinje cells, but not eurydendroid cells, receive strong inputs via the climbing fibers, similar to the mammalian situation.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 2","pages":"141-150"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9292077","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

Zoology of Fishes. 鱼类动物学。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-04-01 DOI: 10.2108/zsj.40.79

Yoshitaka Oka, Chie Umatani

{"title":"Zoology of Fishes.","authors":"Yoshitaka Oka, Chie Umatani","doi":"10.2108/zsj.40.79","DOIUrl":"https://doi.org/10.2108/zsj.40.79","url":null,"abstract":"The Zoological Society of Japan is one of the longest-standing scientific societies in Japan, and it has been publishing a unique prestigious international journal in zoology, Zoological Science, for a long period of time since its foundation in 1984 as the continuation of Zoological Magazine (1888-1983) and Annotationes Zoologicae Japonenses (1897-1983). One of the most salient features of the Society and the Journal may be the variety of species of animals used in the studies by the members of the society and the authors of the journal. Among various animal species, fish may have contributed to almost all disciplines of presentations and publications, including behavioral biology, biochemistry, cell biology, developmental biology, diversity and evolution, ecology, endocrinology, genetics, immunology, morphology, neurobiology, phylogeny, reproductive biology, and taxonomy. Owing to the recent advancement of modern molecular genetic methods in biology, not a few fish species have contributed to various research disciplines in zoological science as model animals. The present Special Issue includes various kinds of such studies in zoological science by taking advantage of a variety of fish species, which are contributed by authors of various generations ranging from junior to senior zoologists.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 2","pages":"79-82"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9286048","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

Neural Control of Sexual Behavior in Fish. 鱼类性行为的神经控制。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-04-01 DOI: 10.2108/zs220108

Yoshitaka Oka

{"title":"Neural Control of Sexual Behavior in Fish.","authors":"Yoshitaka Oka","doi":"10.2108/zs220108","DOIUrl":"https://doi.org/10.2108/zs220108","url":null,"abstract":"Many vertebrate species show breeding periods and exhibit series of characteristic species-specific sexual behaviors only during the breeding period. Here, secretion of gonadal sex hormones from the mature gonads has been considered to facilitate sexual behaviors. Thus, the sexual behavior has long been considered to be regulated by neural and hormonal mechanisms. In this review, we discuss recent progress in the study of neural control mechanisms of sexual behavior with a focus on studies using fish, which have often been the favorite animals used by many researchers who study instinctive animal behaviors. We first discuss control mechanisms of sexual behaviors by sex steroids in relation to the anatomical studies of sex steroid-concentrating neurons in various vertebrate brains, which are abundantly distributed in evolutionarily conserved areas such as preoptic area (POA) and anterior hypothalamus. We then focus on another brain area called the ventral telencephalic area, which has also been suggested to contain sex steroid-concentrating neurons and has been implicated in the control of sexual behaviors, especially in teleosts. We also discuss control of sex-specific behaviors and sexual preference influenced by estrogenic signals or by olfactory/pheromonal signals. Finally, we briefly summarize research on the modulatory control of motivation for sexual behaviors by a group of peptidergic neurons called terminal nerve gonadotropin-releasing hormone (TN-GnRH) neurons, which are known to be especially developed in fishes among various vertebrate species.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 2","pages":"128-140"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9292075","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: 2

Segment-Dependent Gene Expression Profiling of the Cartilaginous Fish Nephron Using Laser Microdissection for Functional Characterization of Nephron at Segment Levels. 利用激光显微解剖技术对软骨鱼肾元进行节段依赖性基因表达谱分析，以在节段水平上表征肾元的功能。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-04-01 DOI: 10.2108/zs220092

Takashi Horie, Wataru Takagi, Naotaka Aburatani, Manabu Yamazaki, Mayu Inokuchi, Masaya Tachizawa, Kataaki Okubo, Ritsuko Ohtani-Kaneko, Kotaro Tokunaga, Marty Kwok-Sing Wong, Susumu Hyodo

{"title":"Segment-Dependent Gene Expression Profiling of the Cartilaginous Fish Nephron Using Laser Microdissection for Functional Characterization of Nephron at Segment Levels.","authors":"Takashi Horie, Wataru Takagi, Naotaka Aburatani, Manabu Yamazaki, Mayu Inokuchi, Masaya Tachizawa, Kataaki Okubo, Ritsuko Ohtani-Kaneko, Kotaro Tokunaga, Marty Kwok-Sing Wong, Susumu Hyodo","doi":"10.2108/zs220092","DOIUrl":"https://doi.org/10.2108/zs220092","url":null,"abstract":"For adaptation to a high salinity marine environment, cartilaginous fishes have evolved a ureosmotic strategy. They have a highly elaborate \"four-loop nephron\" in the kidney, which is considered to be important for reabsorption of urea from the glomerular filtrate to maintain a high concentration of urea in the body. However, the function and regulation, generally, of the \"four-loop nephron\" are still largely unknown due to the complicated configuration of the nephron and its many subdivided segments. Laser microdissection (LMD) followed by RNA-sequencing (RNA-seq) analysis is a powerful technique to obtain segment-dependent gene expression profiles. In the present study, using the kidney of cloudy catshark, Scyliorhinus torazame, we tested several formaldehyde-free and formaldehyde-based fixatives to optimize the fixation methods. Fixation by 1% neutral buffered formalin for 15 min resulted in sufficient RNA and structural integrities, which allowed LMD clipping of specific nephron segments and subsequent RNA-seq analysis. RNA-seq from the LMD samples of the second-loop, the fourth-loop, and the five tubular segments in the bundle zone revealed a number of specific membrane transporter genes that can characterize each segment. Among them, we examined expressions of the Na + -coupled cotransporters abundantly expressed in the second loop samples. Although the proximal II segment of the second loop is known for the elimination of excess solutes, the present results imply that the PII segment is also crucial for reabsorption of valuable solutes. Looking ahead to future studies, the segment-dependent gene expression profiling will be a powerful technique for unraveling the renal mechanisms and regulation in euryhaline elasmobranchs.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 2","pages":"91-104"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9292071","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: 2

Teratorn and Its Related Elements - a Novel Group of Herpesviruses Widespread in Teleost Genomes. Teratorn及其相关元件-一组广泛存在于硬骨鱼基因组中的新型疱疹病毒。

IF 0.9 4区生物学

Zoological Science Pub Date : 2023-04-01 DOI: 10.2108/zs220069

Yusuke Inoue, Hiroyuki Takeda

{"title":"Teratorn and Its Related Elements - a Novel Group of Herpesviruses Widespread in Teleost Genomes.","authors":"Yusuke Inoue, Hiroyuki Takeda","doi":"10.2108/zs220069","DOIUrl":"https://doi.org/10.2108/zs220069","url":null,"abstract":"Herpesviruses are a large family of DNA viruses infecting vertebrates and invertebrates, and are important pathogens in the field of aquaculture. In general, herpesviruses do not have the ability to integrate into the host genomes since they do not have a chromosomal integration step in their life cycles. Recently, we identified a novel group of herpesviruses, \"Teratorn\" and its related elements, in the genomes of various teleost fish species. At least some of the Teratorn-like herpesviruses are fused with a piggyBac-like DNA transposon, suggesting that they have acquired the transposon-like intragenomic lifestyle by hijacking the transposon system. In this review, we describe the sequence characteristics of Teratorn-like herpesviruses and phylogenetic relationships with other herpesviruses. Then we discuss the process of transposon-herpesvirus fusion, their life cycle, and the generality of transposon-virus fusion. Teratorn-like herpesviruses provide a piece of concrete evidence that even non-retroviral elements can become intragenomic parasites retaining replication capacity, by acquiring transposition machinery from other sources.","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"40 2","pages":"83-90"},"PeriodicalIF":0.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9292072","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: 2