Aquatic Botany最新文献_第9页

Effects on local oxygen conditions by the invasive macrophyte Myriophyllum spicatum 外来营养繁殖植物叶绿藻对当地氧气条件的影响

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-24 DOI: 10.1016/j.aquabot.2023.103739

Ashley Hoblyn , Lars Lønsmann Iversen

{"title":"Effects on local oxygen conditions by the invasive macrophyte Myriophyllum spicatum","authors":"Ashley Hoblyn , Lars Lønsmann Iversen","doi":"10.1016/j.aquabot.2023.103739","DOIUrl":"10.1016/j.aquabot.2023.103739","url":null,"abstract":"<div>Myriophyllum spicatum, Eurasian watermilfoil, is a submerged aquatic plant invasive to North America. Several characteristics found in M. spicatum provide reasoning behind its invasion success such as its ability to spread and grow rapidly as well as displace other surrounding native species. However, Eurasian watermilfoil’s effects on ecosystem functioning (such as dissolved oxygen) and how such functioning differ from effects of native vegetation have seldom been studied. Using data collected in field, we used statistical models including Gaussian multivariate linear effect models and structural equation modelling (SEM), to investigate the effect of vegetation type and cover on dissolved oxygen (DO) and temperature gradients. Here, we show that invasive Eurasian watermilfoil colonies, relative to native submerged vegetation, can have a direct effect on DO gradients. These changes in DO conditions were driven by both an increase in surface oxygen concentrations and a decrease in bottom layer oxygen concentration in dense M. spicatum vegetation. Furthermore, we find that the differences in DO gradients could be predicted from M. spicatum’s direct impact on oxygen concentration and not indirectly via its effects on water temperature. Our results demonstrate that dense colonies of M. spicatum can directly affect DO concentrations and may do so more than native macrophytes which could explain its rapid spread and potential impacts on ecosystem functioning.</div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"192 ","pages":"Article 103739"},"PeriodicalIF":1.8,"publicationDate":"2023-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139056414","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

Hydroperiod modulates early growth and biomass partitioning in Rhizophora mangle L. 水期调节 Rhizophora mangle L 的早期生长和生物量分配

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-23 DOI: 10.1016/j.aquabot.2023.103747

Julio A. Salas-Rabaza , Casandra Reyes-García , Rodrigo Méndez-Alonzo , Roberth Us-Santamaría , Samuel Flores-Mena , José Luis Andrade

{"title":"Hydroperiod modulates early growth and biomass partitioning in Rhizophora mangle L.","authors":"Julio A. Salas-Rabaza , Casandra Reyes-García , Rodrigo Méndez-Alonzo , Roberth Us-Santamaría , Samuel Flores-Mena , José Luis Andrade","doi":"10.1016/j.aquabot.2023.103747","DOIUrl":"10.1016/j.aquabot.2023.103747","url":null,"abstract":"<div>In mangrove forests, the hydroperiod is strongly related to tidal dynamics, where the periodic oceanic water movement regulates the level, duration, and frequency of the flooding events. In fringe mangrove forests, Rhizophora mangle propagules deal with variable hydroperiod conditions that sometimes compromise their survival. To disentangle the combined effects of duration and intensity of flooding on physiological and growth variables, we imposed a continuous experiment with three levels of flooding and four flooding durations on seedlings of R. mangle. We collected data at 3 and 6.5 months after exposure to the treatments. Propagule reserves allowed plants to evade the effects of the flood level after a 3-month treatment period. After a 6.5-month exposure, physiology and growth were modulated by the flooding time. Individual plants had higher stem length and lower root and total biomass at prolonged and high flooding levels compared to any other flooding combinations. In both ages, the highest total plant biomass was exhibited in the medium flooding levels and 6 h flooding duration. The plasticity index was higher for morphological and biomass variables than for physiological variables. The high morphological plasticity of R. mangle plants constitutes a competitive advantage to colonize flooded sites in fringed mangrove areas. Our results identify schemes to improve the success of mangrove restoration plans, a critical tool for carbon sequestration and ecosystem service provision.</div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"191 ","pages":"Article 103747"},"PeriodicalIF":1.8,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139027710","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

Effects of seed traits and dormancy break treatments on germination of four aquatic plant species 种子性状和休眠处理对四种水生植物萌发的影响

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-22 DOI: 10.1016/j.aquabot.2023.103746

Michael R. Verhoeven, Jonah A. Bacon, Daniel J. Larkin

{"title":"Effects of seed traits and dormancy break treatments on germination of four aquatic plant species","authors":"Michael R. Verhoeven, Jonah A. Bacon, Daniel J. Larkin","doi":"10.1016/j.aquabot.2023.103746","DOIUrl":"https://doi.org/10.1016/j.aquabot.2023.103746","url":null,"abstract":"Germination biology and dormancy-breaking requirements of fully aquatic (submerged and floating) plant species remain relatively understudied. This is a significant impediment to efforts to restore vegetation in freshwater systems, where the abundance of seeds, and possibility of sowing them in large numbers, suggests underutilized potential for active revegetation. We assessed the influence of seed traits (mass and shape) and two treatments to break dormancy (scarification and gibberellic acid) on the germination of seeds of four macrophyte species after cold-stratification. For all species, untreated seeds did not germinate (0% rate), despite relatively high seed viability (42-90% across species). For Potamogeton illinoensis and P. natans, scarification plus gibberellic acid increased germination the most, to 83% and 35%, respectively (corrected for viability). The other two species remained wholly (Brasenia schreberi) or overwhelmingly (Nuphar variegata) ungerminated. For the two species that did germinate, germination probability increased with seed mass (P. natans and P. illinoensis) and elongation (P. natans). While the small size of trait effects relative to seed treatment effects suggests the latter are more important for revegetation work, the trait patterns highlight evolutionary tradeoffs in seed-size investments. The two Potamogeton species we examined show promise for use in revegetation via seeding, whereas B. schreberi and N. variegata dormancy break has not been adequately developed for these species to be used in seeding-based revegetation.","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"80 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139027714","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

Effects of seed traits and dormancy break treatments on germination of four aquatic plant species 种子性状和休眠处理对四种水生植物萌发的影响

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-22 DOI: 10.1016/j.aquabot.2023.103746

Michael R. Verhoeven , Jonah A. Bacon , Daniel J. Larkin

{"title":"Effects of seed traits and dormancy break treatments on germination of four aquatic plant species","authors":"Michael R. Verhoeven , Jonah A. Bacon , Daniel J. Larkin","doi":"10.1016/j.aquabot.2023.103746","DOIUrl":"10.1016/j.aquabot.2023.103746","url":null,"abstract":"<div>Germination biology and dormancy-breaking requirements of fully aquatic (submerged and floating) plant species remain relatively understudied. This is a significant impediment to efforts to restore vegetation in freshwater systems, where the abundance of seeds, and possibility of sowing them in large numbers, suggests underutilized potential for active revegetation. We assessed the influence of seed traits (mass and shape) and two treatments to break dormancy (scarification and gibberellic acid) on the germination of seeds of four macrophyte species after cold-stratification. For all species, untreated seeds did not germinate (0% rate), despite relatively high seed viability (42–90% across species). For Potamogeton illinoensis and P. natans, scarification plus gibberellic acid increased germination the most, to 83% and 35%, respectively (corrected for viability). The other two species remained wholly (Brasenia schreberi) or overwhelmingly (Nuphar variegata) ungerminated. For the two species that did germinate, germination probability increased with seed mass (P. natans and P. illinoensis) and elongation (P. natans). While the small size of trait effects relative to seed treatment effects suggests the latter are more important for revegetation work, the trait patterns highlight evolutionary tradeoffs in seed-size investments. The two Potamogeton species we examined show promise for use in revegetation via seeding, whereas B. schreberi and N. variegata dormancy break has not been adequately developed for these species to be used in seeding-based revegetation.</div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"192 ","pages":"Article 103746"},"PeriodicalIF":1.8,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0304377023001316/pdfft?md5=928fa215c81b5298b5fd0bf64ff226eb&pid=1-s2.0-S0304377023001316-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139015954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A trajectory of Zostera marina (eelgrass) ecosystem recovery: pre- and post-Hurricane Sandy degradation in Barnegat Bay, New Jersey Zostera marina（鳗草）生态系统的恢复轨迹：飓风桑迪前后新泽西州巴内加特湾的退化情况

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-16 DOI: 10.1016/j.aquabot.2023.103744

Edgar A. Medina, Abdullah J. Alhaddad, Adi Ackerman, Julia Kopell, Nicole Rodriguez Ortiz, Mya-Hali T. Theodore, Paul A.X. Bologna , James J. Campanella

{"title":"A trajectory of Zostera marina (eelgrass) ecosystem recovery: pre- and post-Hurricane Sandy degradation in Barnegat Bay, New Jersey","authors":"Edgar A. Medina, Abdullah J. Alhaddad, Adi Ackerman, Julia Kopell, Nicole Rodriguez Ortiz, Mya-Hali T. Theodore, Paul A.X. Bologna , James J. Campanella","doi":"10.1016/j.aquabot.2023.103744","DOIUrl":"10.1016/j.aquabot.2023.103744","url":null,"abstract":"<div>In 2012, Hurricane Sandy struck Barnegat Bay, New Jersey damaging extensive beds of Zostera marina and causing major benthic ecosystem disruptions. Pre-Sandy genetic surveys of eelgrass populations in Barnegat Bay indicated low heterozygosity and connectivity with high levels of inbreeding. After such devastation, we became concerned with the long-term fate of these populations and in previous work examined the present genetic condition of eelgrass in Barnegat Bay. Counter to our expectations, the 2021 Z. marina populations were more diverse, had greater connectivity and less inbreeding than the populations from 2008. These results further motivated us to examine the trajectory of changes between 2008 and 2021 through additional investigation of archival Z. marina samples from 2013 and 2017. This present study tracks the trajectory of Barnegat Bay eelgrass population genetics before and after Hurricane Sandy. Immediately post Sandy, populations were already more diverse with heterozygosity closer to Hardy-Weinberg Equilibrium; by 2021, two populations, Oyster Creek and Ham Island, demonstrated a surplus of heterozygotes. Similarly, in 2013 there was a three to eight-fold reduction in inbreeding observed with clear outbreeding by 2017. There was no evidence of recent bottlenecks in any population, although Oyster Creek and Ham Island populations manifested historical bottlenecks. Our evidence supports that genetic recovery was already underway a year after Sandy.</div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"191 ","pages":"Article 103744"},"PeriodicalIF":1.8,"publicationDate":"2023-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138690503","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

Arrival of the non-indigenous brown alga Mutimo cylindricus to the Atlantic Ocean 非土著褐藻 Mutimo cylindricus 进入大西洋

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-16 DOI: 10.1016/j.aquabot.2023.103745

D. Álvarez-Canali , M. Sansón , A. Tronholm

{"title":"Arrival of the non-indigenous brown alga Mutimo cylindricus to the Atlantic Ocean","authors":"D. Álvarez-Canali , M. Sansón , A. Tronholm","doi":"10.1016/j.aquabot.2023.103745","DOIUrl":"10.1016/j.aquabot.2023.103745","url":null,"abstract":"<div>Every introduction of a non-indigenous species (NIS) in coastal environments poses a threat to the native species and communities, as its effects in the ecosystem are not readily predictable. Introduction rates have kept increasing in the last decades, and our finding of the brown alga Mutimo cylindricus in the Canary Islands is another example of this general trend. This work represents the first record of the species outside its native range (Japan, Korea and the Philippines) in half a century, since its report in 1973 in Baja California, and marks the first report of M. cylindricus in the Atlantic Ocean. We analyzed the morphology of a male gametophyte observed in the Canary Islands and its phylogenetic relationship with other known populations using rbcL and cox3 genes. The morphology of M. cylindricus in the Canary Islands is consistent with previous descriptions and the phylogenetic analyses revealed the close relationship with native populations from Japan. The finding of a male gametophyte is noteworthy, as introduced and some native populations of this species are composed exclusively by female gametophytes and thought to be parthenogenic, whereas androgenesis is considered rare in the field. Maritime traffic appears as the most apparent introduction vector of the species and it seems plausible that microscopic crustose sporophytes were present near the collecting site, highlighting the need of further monitoring of the invasive potential of this species in the Atlantic Ocean.</div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"191 ","pages":"Article 103745"},"PeriodicalIF":1.8,"publicationDate":"2023-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0304377023001304/pdfft?md5=dbc566a626f125785933630fc3673a07&pid=1-s2.0-S0304377023001304-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138690502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interaction of nutrient enrichment and farming method on performance of the red seaweed Kappaphycus alvarezii 营养物质富集和养殖方法对红海藻 Kappaphycus alvarezii 性能的交互作用

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-16 DOI: 10.1016/j.aquabot.2023.103743

Jubail S. Muyong , Albaris B. Tahiluddin

引用次数: 0

Global mitochondrial and chloroplast genome diversity in the threatened aquatic carnivorous plant Aldrovanda vesiculosa 濒危水生食肉植物 Aldrovanda vesiculosa 的全球线粒体和叶绿体基因组多样性

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-11 DOI: 10.1016/j.aquabot.2023.103742

Helena Štorchová , Manuela Krüger , Ian Small , Lubomír Adamec , Paul G. Nevill , Katharine A. Howell , Kingsley W. Dixon , Mark Derbyshire , Xiao Zhong , Adam T. Cross

{"title":"Global mitochondrial and chloroplast genome diversity in the threatened aquatic carnivorous plant Aldrovanda vesiculosa","authors":"Helena Štorchová , Manuela Krüger , Ian Small , Lubomír Adamec , Paul G. Nevill , Katharine A. Howell , Kingsley W. Dixon , Mark Derbyshire , Xiao Zhong , Adam T. Cross","doi":"10.1016/j.aquabot.2023.103742","DOIUrl":"10.1016/j.aquabot.2023.103742","url":null,"abstract":"<div>The submerged aquatic carnivorous plant Aldrovanda vesiculosa (Droseraceae) is threatened by rapid deterioration of wetlands and oligotrophic lake habitats. Its native distribution spans four continents, but many historic populations are now extinct. Previous genetic studies found distinction between populations from Australia and those from the rest of the world, but due to limited genetic markers, neither detailed phylogenetic relationships nor the migration routes of A. vesiculosa populations were revealed. We used a de novo assembly of the A. vesiculosa mitochondrial genome and a previously published plastid genome as references for mapping short DNA sequence reads from 17 globally distributed populations. Phylogenetic trees were constructed based on detected polymorphisms. Genetic diversity of both the mitochondrial and plastid genome was low (Pi 0.55 × 10−4 and 0.7 × 10−4, respectively). Greater polymorphisms were found in the mitochondrial compared with the plastid genome, owing to its larger size (1.27 Mb). Australian populations formed a monophyletic clade in both plastid and mitochondrial trees, while the mitochondrial tree also distinguished populations from southern and northern Europe. Aldrovanda vesiculosa likely migrated to Australia and Africa from a southern European refuge during the last interglacial period∼100,000 years ago. When the last glaciation started, some populations could have survived in eastern Europe and moved north, when the continental glacier retreated. Aldrovanda vesiculosa experienced repeated population bottlenecks that reduced its genetic diversity.</div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"191 ","pages":"Article 103742"},"PeriodicalIF":1.8,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0304377023001274/pdfft?md5=7f5862b4aabb9d6d975a76b31cfc83ec&pid=1-s2.0-S0304377023001274-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138574212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sargassum species as hydrozoans substrates: Key patterns of association or just availability? 作为水螅底质的马尾藻物种：关联的关键模式还是仅仅可用性？

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-11 DOI: 10.1016/j.aquabot.2023.103738

Cecilia Odette Carral-Murrieta , Elisa Serviere-Zaragoza , Francisco Rubén Castañeda Rivero , Antonio C. Marques , María A. Mendoza-Becerril

{"title":"Sargassum species as hydrozoans substrates: Key patterns of association or just availability?","authors":"Cecilia Odette Carral-Murrieta , Elisa Serviere-Zaragoza , Francisco Rubén Castañeda Rivero , Antonio C. Marques , María A. Mendoza-Becerril","doi":"10.1016/j.aquabot.2023.103738","DOIUrl":"10.1016/j.aquabot.2023.103738","url":null,"abstract":"<div>The genus Sargassum comprises both benthic and holopelagic species, serving as basibionts for numerous marine organisms, including frequent epibiotic occurrences of hydrozoans (Cnidaria). Several aspects of the epibiotic interaction between hydrozoans and Sargassum species remain insufficiently explored. This includes patterns such as the hydrozoan community’s composition and abundance across sections and structures of Sargassum. To address these gaps, we conducted an investigation aiming to uncover potential differences in the species composition and abundance of hydrozoan epibionts on benthic and holopelagic Sargassum species (BSS and HSS, respectively) from the Atlantic and Pacific Oceans of Mexico. Additionally, we sought to characterize hydrozoan epibionts preferences for specific sections and structures of Sargassum. Our analysis identified 18 hydrozoan epibiont species on Sargassum, belonging to Leptothecata (88.9%) and anthoathecate (11.1%), with one new register for Sargassum species. Each Sargassum species harbored a distinct hydrozoan epibiont species with a marked higher mean total coverage. The total percentage coverage of hydrozoans on BSS exhibited less variability than HSS. The basal section of BSS hosted the highest number of species. Concerning Sargassum structures, a greater species richness was found on the axis and the blades. Our study also demonstrates that differences in hydrozoan species primarily depend on the geographical distribution of Sargassum species.</div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"191 ","pages":"Article 103738"},"PeriodicalIF":1.8,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138566927","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 search for hybrids between Myriophyllum sibiricum and M. spicatum (Haloragaceae) in North Eurasia allowed to clarify their morphological differences and distribution 在北欧亚大陆寻找西双版纳麝香草（Myriophyllum sibiricum）和穗花麝香草（M. spicatum）的杂交种，澄清了它们的形态差异和分布情况

IF 1.8 4区生物学

Aquatic Botany Pub Date : 2023-12-08 DOI: 10.1016/j.aquabot.2023.103741

Polina A. Volkova , Maria O. Ivanova , Alexander A. Bobrov

{"title":"The search for hybrids between Myriophyllum sibiricum and M. spicatum (Haloragaceae) in North Eurasia allowed to clarify their morphological differences and distribution","authors":"Polina A. Volkova , Maria O. Ivanova , Alexander A. Bobrov","doi":"10.1016/j.aquabot.2023.103741","DOIUrl":"10.1016/j.aquabot.2023.103741","url":null,"abstract":"<div>Myriophyllum sibiricum and M. spicatum are sympatric in large part of their vast ranges in Eurasia and North America and have different habitat preferences only in East Europe and Siberia. Such absence of both geographic and ecological isolation should trigger extensive hybridization between these species that is indeed observed in North America. The hybrid could be reliably documented only with genetic markers, and in Eurasia this was done only in China. Using genetic markers (ITS2 region of nuclear ribosomal DNA and trnL-trnF intergenic spacer of cpDNA) we documented hybrids between M. sibiricum and M. spicatum on the North Asian Pacific islands with dynamic geological history and climate (Commander and the southern Kuril islands). The hybrid also originated in East Europe (Ivanovo Region) as a result of ecological isolation break due to rapid artificial habitat change. Using genetically verified material throughout temperate Eurasia we clarified morphological characters discriminating M. sibiricum and M. spicatum and, basing on them, refined the species distribution. For the first time we provide a full morphological characteristic of the hybrid between M. sibiricum and M. spicatum and suggest a name for it, M. × hybridum.</div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"191 ","pages":"Article 103741"},"PeriodicalIF":1.8,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138553854","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