{"title":"日本佐渡岛 Vaucheria piloboloides（Vaucheriales, Xanthophyceae）的生命周期和分子系统发育","authors":"Masakazu Hoshino, Satoru Tadokoro, Shingo Akita, Shinya Uwai","doi":"10.1111/pre.12566","DOIUrl":null,"url":null,"abstract":"SUMMARYThe siphonous, yellow–green alga <jats:italic>Vaucheria piloboloides</jats:italic> (Vaucheriales, Xanthophyceae) is the type species of the section <jats:italic>Piloboloideae</jats:italic> and is widely reported worldwide. Despite its taxonomic importance and broad range distribution, its detailed life cycle and molecular phylogenetic position are unknown. In the present study, we established culture strains of <jats:italic>V. piloboloides</jats:italic> collected from Sado Island, Niigata Prefecture, Japan, and examined its morphology, life cycle and phylogenetic position based on <jats:italic>rbc</jats:italic>L sequences. The morphology of the gametangia and aplanosporangia (asexual sporangia) of our samples, along with their monoecious nature, resembled that of <jats:italic>V. piloboloides</jats:italic> from the Atlantic coast, including the type locality. The <jats:italic>rbc</jats:italic>L phylogenetic analysis demonstrated that our sample formed a clade with other <jats:italic>Piloboloideae</jats:italic> species, supporting the current sectional scheme of <jats:italic>Vaucheria</jats:italic>. Under culture conditions, our samples exhibited a monophasic life cycle. Development of gametangia was observed in any culture conditions, whereas development of aplanosporangia could be induced by low salinity (salinity = 24).","PeriodicalId":20544,"journal":{"name":"Phycological Research","volume":"3 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Life cycle and molecular phylogeny of Vaucheria piloboloides (Vaucheriales, Xanthophyceae) from Sado Island, Japan\",\"authors\":\"Masakazu Hoshino, Satoru Tadokoro, Shingo Akita, Shinya Uwai\",\"doi\":\"10.1111/pre.12566\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"SUMMARYThe siphonous, yellow–green alga <jats:italic>Vaucheria piloboloides</jats:italic> (Vaucheriales, Xanthophyceae) is the type species of the section <jats:italic>Piloboloideae</jats:italic> and is widely reported worldwide. Despite its taxonomic importance and broad range distribution, its detailed life cycle and molecular phylogenetic position are unknown. In the present study, we established culture strains of <jats:italic>V. piloboloides</jats:italic> collected from Sado Island, Niigata Prefecture, Japan, and examined its morphology, life cycle and phylogenetic position based on <jats:italic>rbc</jats:italic>L sequences. The morphology of the gametangia and aplanosporangia (asexual sporangia) of our samples, along with their monoecious nature, resembled that of <jats:italic>V. piloboloides</jats:italic> from the Atlantic coast, including the type locality. The <jats:italic>rbc</jats:italic>L phylogenetic analysis demonstrated that our sample formed a clade with other <jats:italic>Piloboloideae</jats:italic> species, supporting the current sectional scheme of <jats:italic>Vaucheria</jats:italic>. Under culture conditions, our samples exhibited a monophasic life cycle. Development of gametangia was observed in any culture conditions, whereas development of aplanosporangia could be induced by low salinity (salinity = 24).\",\"PeriodicalId\":20544,\"journal\":{\"name\":\"Phycological Research\",\"volume\":\"3 1\",\"pages\":\"\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-09-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Phycological Research\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1111/pre.12566\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MARINE & FRESHWATER BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Phycological Research","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1111/pre.12566","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
Life cycle and molecular phylogeny of Vaucheria piloboloides (Vaucheriales, Xanthophyceae) from Sado Island, Japan
SUMMARYThe siphonous, yellow–green alga Vaucheria piloboloides (Vaucheriales, Xanthophyceae) is the type species of the section Piloboloideae and is widely reported worldwide. Despite its taxonomic importance and broad range distribution, its detailed life cycle and molecular phylogenetic position are unknown. In the present study, we established culture strains of V. piloboloides collected from Sado Island, Niigata Prefecture, Japan, and examined its morphology, life cycle and phylogenetic position based on rbcL sequences. The morphology of the gametangia and aplanosporangia (asexual sporangia) of our samples, along with their monoecious nature, resembled that of V. piloboloides from the Atlantic coast, including the type locality. The rbcL phylogenetic analysis demonstrated that our sample formed a clade with other Piloboloideae species, supporting the current sectional scheme of Vaucheria. Under culture conditions, our samples exhibited a monophasic life cycle. Development of gametangia was observed in any culture conditions, whereas development of aplanosporangia could be induced by low salinity (salinity = 24).
期刊介绍：
Phycological Research is published by the Japanese Society of Phycology and complements the Japanese Journal of Phycology. The Journal publishes international, basic or applied, peer-reviewed research dealing with all aspects of phycology including ecology, taxonomy and phylogeny, evolution, genetics, molecular biology, biochemistry, cell biology, morphology, physiology, new techniques to facilitate the international exchange of results. All articles are peer-reviewed by at least two researchers expert in the filed of the submitted paper. Phycological Research has been credited by the International Association for Plant Taxonomy for the purpose of registration of new non-vascular plant names (including fossils).
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