Cheng-Wei Chen, Van Truong Do, Quang Cuong Truong, Viet Dai Dang, Hong Truong Luu, Yi-Shan Chao, Yao-Moan Huang, Kuo-Fang Chung
{"title":"Studies of Vietnamese Pteridophyte Flora 3.","authors":"Cheng-Wei Chen, Van Truong Do, Quang Cuong Truong, Viet Dai Dang, Hong Truong Luu, Yi-Shan Chao, Yao-Moan Huang, Kuo-Fang Chung","doi":"10.3897/phytokeys.255.141395","DOIUrl":null,"url":null,"abstract":"<p><p>This is the third paper in a series dedicated to updating the knowledge of the Vietnamese pteridophyte flora. Based on recent collections, we first reported three new national records of ferns: <i>Haplopterisyakushimensis</i>, <i>Lindsaeakohkongensis</i>, and <i>Pterispseudowulaiensis</i>. Secondly, we conducted phylogenetic analyses to investigate the placements of <i>Lindsaeakohkongensis</i> and <i>Leptochiluspoilanei</i>, each based on three plastid DNA markers. Our results revealed that <i>Lindsaeakohkongensis</i> is sister to <i>L.ensifolia</i>, while <i>Leptochiluspoilanei</i> is embedded within <i>L.cantoniensis</i>. We discussed these results in the context of systematics. Lastly, we reported chromosome numbers for 20 fern species in Vietnam. For seven of these species, including <i>Gymnosphaerasalletii</i>, <i>Lepisorusspicatus</i>, <i>Leptochiluspoilanei</i>, <i>Pteridryscostularis</i>, <i>Pterislatipinna</i>, <i>Pyrrosiaeberhardtii</i>, and <i>Tectariasetulosa</i>, these counts were recorded for the first time. Additionally, three new cytotypes were identified for <i>Diplaziumdoederleinii</i>, <i>Pterisesquirolii</i>, and <i>Tectariaharlandii</i>. This study underscores the need for more diverse data, including DNA sequences, chromosome numbers, and reproductive modes, to be collected and integrated into systematic studies and taxonomic treatments to enhance our understanding of Vietnam's pteridophyte flora.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"255 ","pages":"143-169"},"PeriodicalIF":1.3000,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12022764/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"PhytoKeys","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.3897/phytokeys.255.141395","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
This is the third paper in a series dedicated to updating the knowledge of the Vietnamese pteridophyte flora. Based on recent collections, we first reported three new national records of ferns: Haplopterisyakushimensis, Lindsaeakohkongensis, and Pterispseudowulaiensis. Secondly, we conducted phylogenetic analyses to investigate the placements of Lindsaeakohkongensis and Leptochiluspoilanei, each based on three plastid DNA markers. Our results revealed that Lindsaeakohkongensis is sister to L.ensifolia, while Leptochiluspoilanei is embedded within L.cantoniensis. We discussed these results in the context of systematics. Lastly, we reported chromosome numbers for 20 fern species in Vietnam. For seven of these species, including Gymnosphaerasalletii, Lepisorusspicatus, Leptochiluspoilanei, Pteridryscostularis, Pterislatipinna, Pyrrosiaeberhardtii, and Tectariasetulosa, these counts were recorded for the first time. Additionally, three new cytotypes were identified for Diplaziumdoederleinii, Pterisesquirolii, and Tectariaharlandii. This study underscores the need for more diverse data, including DNA sequences, chromosome numbers, and reproductive modes, to be collected and integrated into systematic studies and taxonomic treatments to enhance our understanding of Vietnam's pteridophyte flora.
期刊介绍:
PhytoKeys is a peer-reviewed, open-access, online and print, rapidly produced journal launched to support free exchange of ideas and information in systematic botany.
All papers published in PhytoKeys can be freely copied, downloaded, printed and distributed at no charge for the reader. Authors are thus encouraged to post the pdf files of published papers on their homepages or elsewhere to expedite distribution. There is no charge for color.