{"title":"(3012) Proposal to conserve the name Serissa against Buchozia (Rubiaceae)","authors":"Junhao Chen, Ming‐Fai Liu, Bine Xue, Lek Kheng Phua, Keow Wah Lim","doi":"10.1002/tax.13113","DOIUrl":"https://doi.org/10.1002/tax.13113","url":null,"abstract":"<p>(3012) <b><i>Serissa</i></b> Comm. ex Juss., Gen. Pl.: 209. 4 Aug 1789 [<i>Rub</i>.], nom. cons. prop.</p>\u0000<p>Typus: <i>S. foetida</i> (L. f.) Poir. (in Lamarck, Tabl. Encycl. 2: 211. 31 Oct 1819) (<i>Lycium foetidum</i> L. f.).</p>\u0000<p>(=) <b><i>Buchozia</i></b> L'Hér., Buchozia: ad t. [1]. Aug–Dec 1788, nom. rej. prop.</p>\u0000<p>Typus: <i>B. coprosmoides</i> L'Hér., nom. illeg. (<i>Lycium japonicum</i> Thunb.; <i>B. japonica</i> (Thunb.) Callm.).</p>\u0000<p><i>Serissa</i> is a genus of one or perhaps two species naturally occurring in China, Japan, Nepal and Vietnam (Chen & Taylor in Wu & Raven, Fl. China 19: 323–324. 2011). <i>Serissa japonica</i> (Thunb.) Thunb. is very extensively cultivated worldwide as a bonsai subject, especially valued for its delicate branching, rough grey bark, numerous dainty flowers throughout the year and, in some cultivars, variegated foliage and/or “double” flowers. In China, <i>Serissa</i> has been cultivated as bonsai at least since 1591 in the Ming Dynasty (Gao, Eight Discourses on Respecting Life [in Chinese]. 1591). The earliest Japanese horticultural record dates back to 1695 (Ito Ihei, Book Glorious Colours Gardens [in Japanese]. 1695). In addition, the plant has been used in traditional Chinese medicine (e.g., for the treatment of ulcers and diarrhoea) for over 1200 years (Chen, Suppl. Materia Medica [in Chinese]. 739). Recent nomenclatural research (Lack & al. in Candollea 76: 145–165. 2021) has revealed that the generic name <i>Buchozia</i> is an earlier validly published name for the genus that is today universally known in horticulture as <i>Serissa</i>. Strict application of the principle of priority would necessitate the adoption of <i>Buchozia</i>. The overlooked name <i>Buchozia</i> has only very lately been unearthed whereas <i>Serissa</i> is a name used for over 230 years in both botanical and horticultural literature and is the Latin name used by bonsai enthusiasts, plant nurseries and E-commerce platforms.</p>\u0000<div><i>Serissa</i> was formally described by Jussieu (Gen. Pl.: 209. 1789) but ascribed to Philibert Commerson, who collected a cultivated <i>S. japonica</i> plant in an unknown locality (likely Mauritius). The etymology of the name may be derived from an Indian vernacular name: although Commerson never travelled to India, he botanised extensively in Mauritius where a substantial Indian population exists and may have brought the plant to Mauritius. Commerson might have used the name <i>Serissa</i> owing to its superficial resemblance to <i>Carissa</i> L. (<i>Apocynaceae</i>), which is based on the Sanskrit name <i>corissa</i>. Because the protologue includes a reference to “Lycio foetido LS.”, the type of the previously published name <i>Lycium foetidum</i> L. f. (Suppl. Pl.: 150. 1782) is definitely included. Therefore, the type of <i>Serissa</i> is the type of <i>L. foetidum</i>. Poiret (in Lamarck, Tabl. Encycl. 2: 211. 1819) subsequently made the new combination <i>Serissa foe","PeriodicalId":49448,"journal":{"name":"Taxon","volume":"1 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139948086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lucas Vieira Lima, Thaís Elias Almeida, Michael Kessler, Germinal Rouhan, Alexandre Salino
{"title":"(3006) Proposal to conserve the name Sticherus (Gleicheniaceae) with a conserved type","authors":"Lucas Vieira Lima, Thaís Elias Almeida, Michael Kessler, Germinal Rouhan, Alexandre Salino","doi":"10.1002/tax.13119","DOIUrl":"https://doi.org/10.1002/tax.13119","url":null,"abstract":"<p>(3006) <b><i>Sticherus</i></b> C. Presl [Tent. Pterid.] in Abh. Königl. Böhm. Ges. Wiss., ser. 4, 5: 51. 1836 (ante 2 Dec), nom. cons. prop.</p>\u0000<p>Typus: <i>S. gracilis</i> (Mart.) Copel. (Gen. Fil.: 27. 1947) (<i>Mertensia gracilis</i> Mart.), typ. cons. prop.</p>\u0000<p><i>Sticherus</i> is the largest genus in <i>Gleicheniaceae</i>, comprising about 95 recognized species (Gonzales & Kessler in Phytotaxa 31: 1–54. 2011; PPG I in J. Syst. Evol. 54: 563–603. 2016; Lima & Salino in Phytotaxa 358: 199–234. 2018). It is found in the tropics of Africa, Asia, Oceania, and the Americas, with the latter area harboring the majority of the species (Holttum in Fl. Males., Ser. 2, Pterid. 1: 1–36. 1959; Gonzales & Kessler, l.c.; PPG I, l.c.). The genus was established by Presl (Tent. Pterid.: 51–52. 1836) and initially included two species: <i>Sticherus laevigatus</i> (Willd.) C. Presl and <i>S. laniger</i> (D. Don) C. Presl. However, the latter species is now widely recognized not to belong to <i>Sticherus</i> (Pichi-Sermolli in Webbia 26: 491–536. 1973) and is currently included in <i>Dicranopteris</i> (Fraser-Jenkins, Taxon. Revis. Indian Subcont. Pterid.: 35. 2008). <i>Sticherus</i> was first typified by Pfeiffer (Nomencl. Bot. 2: 1285. 1874), who designated <i>S. laevigatus</i> (<i>Mertensia laevigata</i> Willd., Sp. Pl. 5: 75. 1810) as type. Christensen (Index Filic.: LIV, 627. 1906) originally included <i>Sticherus</i> within <i>Gleichenia</i> sect. <i>Holopterygium</i> Diels, when adopting a monogeneric classification for <i>Gleicheniaceae</i>, but, subsequently (in Verdoorn, Man. Pterid.: 530. 1938) he recognized <i>Sticherus</i> in his classification system, now with five genera for <i>Gleicheniaceae</i>, and also adopted <i>S. laevigatus</i> as the type of the generic name.</p>\u0000<p><i>Sticherus laevigatus</i> has been widely treated as a synonym of <i>S. truncatus</i> (Willd.) Nakai (e.g., Holttum, l.c.; Pichi-Sermolli, l.c.: 524; Gonzales & Kessler, l.c.), based on <i>Mertensia truncata</i> Willd. (in Kongl. Vetensk. Acad. Nya Handl. 25: 169. 1804) an earlier name than <i>M. laevigata</i> Willd. The first author carefully reviewed the original elements of these two species in Willdenow's collection housed at B (B -W 19470 -01 0 and B -W 19471 -01 0), also confirming without any doubt the synonymy.</p>\u0000<p>Species delimitation within <i>Sticherus</i> is complex, primarily based on the indumentum and secondarily on blade architecture and rhizome features. The genus underwent revision by Gonzales & Kessler (l.c.) and was later revisited by Lima & Salino (l.c.) and Lima & al. (in review). The same authors (Lima & al. in Molec. Phylogen. Evol. 184: 107782. 2023), in a phylogenomic study with an extensive geographic sampling of the genus, found <i>Sticherus</i> to be paraphyletic. In that study, the genus forms two clades, <i>Sticherus</i> s.str., including <i>S. laevigatus</i>, the type of the generic name, and <i>S. miln","PeriodicalId":49448,"journal":{"name":"Taxon","volume":"41 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139948144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marcelo Simon, Tania Moura, Domingos Cardoso, Patrick Herendeen
{"title":"Eighth International Legume Conference, Pirenópolis, Brazil, August 2023","authors":"Marcelo Simon, Tania Moura, Domingos Cardoso, Patrick Herendeen","doi":"10.1002/tax.13111","DOIUrl":"https://doi.org/10.1002/tax.13111","url":null,"abstract":"<p>The 8th International Legume Conference (8ILC, www.8ilc.com) took place from 6th to 11th August 2023 in Pirenópolis, Brazil, one of the most charming towns in the heart of the savanna landscapes of the Cerrado biodiversity hotspot. The ILC is a series of international conferences focused on the legume family. It encompasses a wide range of topics, including but not limited to systematics, evolution, biogeography, morphology, ecology, biological nitrogen fixation, and genomics. Although this event was inaugurated in 1978, it does not adhere to a set periodic schedule; in recent years, however, it has been convened approximately every five years. For the first time, the ILC was held in Brazil, a country renowned for its extraordinary biological and cultural diversity, and home to a vibrant community of legume researchers. The International Association for Plant Taxonomy (IAPT), reaffirming its commitment to fostering global taxonomy and systematics, was among the 8ILC sponsors.</p>\u0000<p>Since its inception, the ILC has firmly established itself as a prominent international meeting, attracting a diverse and extensive participation of researchers from various countries and continents, as well as a remarkable presence of students. By fostering global collaboration among researchers, well exemplified by the formation of the Legume Phylogeny Working Group (LPWG), the ILC is a welcoming environment in which new scientifically exciting ideas and advances in the legume family arise. For example, the 6ILC in 2013 in Johannesburg, South Africa, set the stage for establishing the new phylogeny-based subfamily-level classification of the Leguminosae. The extensive discussions on the new legume classification that emerged during the 6ILC were the basis for the publication of two papers in <i>Taxon</i> in 2013 and 2017, under the auspices of the LPWG: (1) a review paper discussing the progress made to date in the molecular systematics and the need for a revised classification of the family (LPWG, 2013: https://doi.org/10.12705/622.8), and (2) the new subfamily-level classification (LPWG, 2017: https://doi.org/10.12705/661.3). Since its publication in early 2017, the LPWG's new classification of legumes at the subfamily level has become successful not only in the legume community. Its impact across plant science is demonstrated by the fact that it has already reached the landmark of becoming the second-most cited paper ever published in <i>Taxon</i>.</p>\u0000<p>The 8ILC in Pirenópolis was centered around the theme of “Integrating Knowledge on the Legume Family”. At the Opening Ceremony on 6th August, Marcelo Simon (Chairperson of the 8ILC) addressed the conference by welcoming all delegates. Then, Professor Fabio Scarano (Universidade Federal do Rio de Janeiro) delivered the opening keynote talk “Legumes and futures: Dialogues between different ways of knowing”.</p>\u0000<p>The global legume community was well represented, with 147 participants hailing from 18 countries,","PeriodicalId":49448,"journal":{"name":"Taxon","volume":"31 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139953303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"(3008) Proposal to conserve the name Philodendron chanchamayense (Araceae) with that spelling","authors":"Michael H. Grayum","doi":"10.1002/tax.13118","DOIUrl":"https://doi.org/10.1002/tax.13118","url":null,"abstract":"<p>(3008) <b><i>Philodendron chanchamayense</i></b> Engl. in Bot. Jahrb. Syst. 37: 125. 19 Sep 1905 (‘<i>chinchamayense</i>’) [Angiosp.: <i>Ar</i>.], orth. cons. prop.</p>\u0000<p>Typus: Peru, Dep. Junín, Prov. Tarma, La Merced im Chanchamayo-Thal, lichter Wald, 1000 m, Dec 1902, <i>Weberbauer 1864</i> (B).</p>\u0000<p>The binomial referenced in the title of this proposal has long been accepted for a species of <i>Philodendron</i> subg. <i>Pteromischum</i> (Schott) Mayo, widespread in the western portion of the Amazon basin in South America, and distinctive morphologically by virtue of its relatively short-petiolate and narrow leaves with conspicuous (at least in dried material) blackish resin canals. The correct spelling of its epithet, however, has been a bone of contention. The name <i>Philodendron chinchamayense</i> (with that spelling) was validated by Adolf Engler (in Bot. Jahrb. Syst. 37: 125. 1905) based on a single specimen collected three years previously by his countryman August Weberbauer “im Chanchamoyo-Tal” (as cited by Engler), Peru. Although Engler did not specify the etymology of his epithet in an explicit manner, he must certainly have based it on the type locality, orthography notwithstanding. Engler's usage of two different spellings is prima facie evidence of an orthographical (if not a typographical) error, because both cannot be correct. In fact, as it turns out, both versions are erroneous: the Peruvian place-name (referring to a river, a town, a district, and a province) on which the epithet of this species must have been based is correctly spelled “Chanchamayo”, and was so spelled even in Engler's time (“Chanchamayo-Thal” is handwritten quite legibly on the label of Weberbauer's type specimen). The Chanchamayo River valley has attained wide repute even outside Peru as a premier coffee-growing region. I have been unable to find any evidence that the spellings “Chinchamayo” or “Chanchamoyo” have ever been used by anyone other than Engler (although “Chanchamayu”, a historic Quechua spelling, persists on a minor scale).</p>\u0000<p>The <i>Code</i> (Art. 60.1; Turland & al. in Regnum Veg. 159. 2018) allows for “the correction of typographical or orthographical errors”, one or the other of which <i>Philodendron chinchamayense</i> is a clear example. According to Art. 60.3, “The liberty of correcting a name is to be used with reserve, especially if the change affects the first syllable and, above all, the first letter of the name”; nevertheless, several conflicting examples are condoned, e.g., those of <i>Agaricus rhacodes</i> Vittad. (Art. 60 Ex. 2), <i>Globba trachycarpa</i> Baker (Ex. 3), and <i>Gluta renghas</i> L. (Ex. 6). As far as I have been able to establish, the first author to correct Engler's <i>P. chinchamayense</i> to <i>P. chanchamayense</i> was Weberbauer himself (in Engler & Drude, Veg. Erde 12: 282. 1911), who did so without comment in an enumeration of plant species from the “Chanchamayo-Tal”. Shortly thereafter, ho","PeriodicalId":49448,"journal":{"name":"Taxon","volume":"31 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139956679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
, Carmen Ulloa Ulloa, Nicholas J. Turland, Alina Freire-Fierro, Bin-Jie Ge, Josephine Milne, A. Muthama Muasya, Jarosław Proćków, Teresa Iturriaga
{"title":"Institutional Votes at the XX International Botanical Congress, Madrid, 2024: Report of the Committee on Institutional Votes","authors":", Carmen Ulloa Ulloa, Nicholas J. Turland, Alina Freire-Fierro, Bin-Jie Ge, Josephine Milne, A. Muthama Muasya, Jarosław Proćków, Teresa Iturriaga","doi":"10.1002/tax.13110","DOIUrl":"https://doi.org/10.1002/tax.13110","url":null,"abstract":"The Committee on Institutional Votes was established at the XIX International Botanical Congress (IBC), in Shenzhen in 2017, with the mandate to maintain a list of institutions and their allocated votes for the upcoming IBC, the next of which will be the XX IBC in Madrid in July 2024. Institutions worldwide were informed of the mechanism to apply for one or more institutional votes or to request a change in previously allocated votes. Forty applications were received by the Committee, of which 28 were from institutions new to the list, 9 requested an increase in allocated votes and 3 requested no change to allocated votes. All requests were accepted, two of them partly so. Adjustments were also made for two institutions that had been closed or transferred. The Committee sent a draft of this report together with the revised list for Madrid to the General Committee for final approval, as required by the <i>International Code of Nomenclature for algae, fungi, and plants</i>. The General Committee approved the list, which is now presented here. The total number of institutions on the list is 572; the total number of institutional votes that could potentially be exercised is 970. Only 30.4% of institutions exercised their votes in Shenzhen in 2017. Institutions are urged to exercise their votes in Madrid in 2024, and instructions for this are provided.","PeriodicalId":49448,"journal":{"name":"Taxon","volume":"22 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139948165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ze-Huan Wang, Yi Yang, Yi Wang, Li Chen, Fei Zhao, Yuan-Yuan Li
{"title":"Tuberowithania pengiana (Withaninae, Physalideae, Solanaceae), a new species and genus from southwest Yunnan, China","authors":"Ze-Huan Wang, Yi Yang, Yi Wang, Li Chen, Fei Zhao, Yuan-Yuan Li","doi":"10.1002/tax.13143","DOIUrl":"https://doi.org/10.1002/tax.13143","url":null,"abstract":"We describe a small population of remarkable plants found in Shuangjiang County, SW Yunnan, as <i>Tuberowithania pengiana</i> gen. & sp. nov., a unique genus within the subtribe Withaninae, tribe Physalideae of the Solanaceae family. The new genus and species feature a distinctive combination of morphological traits, including a large clumped tuberous root, urceolate and densely pubescent dark purplish flowers, densely pubescent purplish filaments, and yellowish-white, ovoid berries snugly covered by 10-ribbed accrescent calyx. Molecular phylogenetic analysis, based on a combined matrix of four DNA markers (nrITS, <i>trnL-F</i>, <i>waxy</i>, <i>LFY</i>), revealed that <i>T. pengiana</i> is deeply nested within the subtribe Withaninae. It forms a sister relationship with <i>Archiphysalis chamaesarachoides</i>, although with weak support.","PeriodicalId":49448,"journal":{"name":"Taxon","volume":"18 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139917819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ROLF AND GERTRUD DAHLGREN PRIZE FOR 2023 AWARDED TO LOUIS RONSE DE CRAENE","authors":"Ib Friis, Natasha de Vere","doi":"10.1002/tax.13144","DOIUrl":"https://doi.org/10.1002/tax.13144","url":null,"abstract":"<p>On 2 December 2023, at the annual celebration of the foundation of the Royal Physiographic Society of Lund, Sweden, the Rolf and Gertrud Dahlgren Prize for 2023 was awarded to Louis Ronse De Craene, Royal Botanic Garden, Edinburgh. The Prize, inaugurated in 1988, is given every third year to a scientist who has made major contributions to botany in the broad-minded spirit of Rolf and Gertrud Dahlgren, particularly in the fields of systematics and evolution of the angiosperms, and regardless of their nationality. The prize-winner is chosen by active researchers in various fields of botany. Ronse De Craene has been awarded the prize for his work on floral development in a broad range of angiosperm families and the importance of floral morphology in the context of modern phylogenetic studies.</p>\u0000<p>Ronse De Craene was born in Kortrijk/Courtrai (Flemish Region of Belgium) in 1962. He obtained an M.Sc. at the University of Reading (U.K.) in 1986, with a thesis in which he proposed a clearer circumscription of the genus <i>Polygonum</i> based on floral morphological and anatomical characters. He received a doctorate at the Catholic University of Leuven (Belgium) in 1992 on a dissertation about the androecium of the angiosperms (<i>The androecium of the Magnoliophytina: Characterisation and systematic importance</i>). After postdoctoral research at Leuven for eight years, he became Director of the M.Sc. program in Biodiversity and Taxonomy of Plants jointly organised by the Royal Botanic Garden Edinburgh (RBGE) and the University of Edinburgh, a post he held from 2002 to 2022. He remains attached at the RBGE as a Research Associate and an external lecturer.</p>\u0000<p>At Leuven and Edinburgh, Ronse De Craene developed a broad research program on flower morphology, studying in detail the floral development and anatomy of many angiosperm families in collaboration with scientists around the world. His most important contribution is a book entitled <i>Floral diagrams: An aid to understand floral morphology and evolution</i>, published by Cambridge University Press in 2010 (revised second edition in 2022). This book explores floral morphology of the angiosperms as an essential counterpart of their molecular phylogeny, and it continues in modern botany the scientific approach of Carolus Linnaeus, Wilhelm Eichler, Eugen Warming, and Rolf Dahlgren, among others. Taken as a whole, Ronse De Craene's work represents a valuable combination of research in several areas of systematics and evolution of the angiosperms.</p>\u0000<p>The Rolf and Gertrud Dahlgren Prize is awarded by the Royal Physiographic Society at Lund, an institution with the secondary title of Academy for the Natural Sciences, Medicine and Technology. This academy was founded on 2 December 1772, by, among others, the botanist Anders Jahan Retzius, for whom the South African genus <i>Retzia</i> (Retziaceae, or Stilbaceae) is named, and father of the anatomist Anders Adolf Retzius. Carl Peter Thunberg was ","PeriodicalId":49448,"journal":{"name":"Taxon","volume":"29 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139917817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seita T. Watanabe, Kazuhiko Hayashi, Katsuro Arakawa, Shizuka Fuse, Koji Takayama, Hidetoshi Nagamasu, Minoru N. Tamura
{"title":"Biosystematic studies on Lilium (Liliaceae) II. Evolutionary history and taxon recognition in the L. maculatum–L. pensylvanicum complex in Japan","authors":"Seita T. Watanabe, Kazuhiko Hayashi, Katsuro Arakawa, Shizuka Fuse, Koji Takayama, Hidetoshi Nagamasu, Minoru N. Tamura","doi":"10.1002/tax.13141","DOIUrl":"https://doi.org/10.1002/tax.13141","url":null,"abstract":"To clarify the evolutionary history of the <i>Lilium maculatum–L. pensylvanicum</i> complex in Japan and to improve the circumscription of its component taxa, we conducted phylogenetic analyses based on chloroplast and nuclear internal and external transcribed spacer (ITS, ETS) DNA sequences, a genome-wide analysis of single-nucleotide polymorphisms (SNPs) using multiplexed ISSR genotyping by sequencing (MIG-seq), and morphological observations. Topological differences between the chloroplast and nuclear ITS + ETS phylogenies indicate that ancient hybridization or incomplete lineage sorting were involved in the origin of “<i>maculatum</i>”, but the relatively long length of relevant branches indicates that incomplete lineage sorting is implausible. The results of STRUCTURE analysis (<i>K</i> = 3, the highest delta <i>K</i> value) using MIG-seq indicate that “<i>maculatum</i>” has already developed its own cluster and can be considered a species (<i>L. maculatum</i>) that originated through the hybridization of <i>L. pacificum</i> (sp. nov.) and <i>L. pensylvanicum</i>. MIG-seq Neighbor-Net and STRUCTURE analyses (<i>K</i> = 3), as well as chloroplast DNA phylogeny, reveal that populations in disjunct limestone areas (<i>L. maculatum</i> var. <i>bukosanense</i>) originated via the hybridization of <i>L. maculatum</i> and <i>L. pacificum</i>, whereas populations in the Sado-Tobishima Islands (<i>L. maculatum</i> var. <i>sadoense</i>, var. nov.) originated via hybridization between <i>L. maculatum</i> and <i>L. pensylvanicum</i>. These taxa appear to be more or less genetically isolated from other populations based on the STRUCTURE analysis (<i>K</i> = 5), although we do not know whether this isolation resulted from geographic distance or reproductive barriers. Based on available MIG-seq and morphological data, respectively, we consider the two hybrid-origin populations to be independent varieties. Furthermore, the morphology of seaside populations of <i>L. maculatum</i> in East Tohoku District appears to have deviated slightly from that of mountain populations (<i>L. maculatum</i> f. <i>monticola</i>); as such, coastal populations merit recognition as a form of <i>L. maculatum</i> (<i>L. maculatum</i> f. <i>spontaneum</i>, comb. & stat. nov.). Other seaside populations of <i>L. maculatum</i> in the West Tohoku District appear to have originated from populations of <i>L. pacificum</i>, but have been successively taken over by <i>L. maculatum</i> through introgression, and have consequently evolved into a form of <i>L. maculatum</i> (<i>L. maculatum</i> f. <i>maculatum</i>). In addition, we found putative extant hybrid populations of <i>L. maculatum × L. pensylvanicum</i>. We recognize three species, two varieties, two forms, and one hybrid in the <i>L. maculatum–L. pensylvanicum</i> complex in Japan.","PeriodicalId":49448,"journal":{"name":"Taxon","volume":"10 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139956467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}