Molecular evidence for the origin of the little-known hybrid Potamogeton ×vilnensis

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-08-22 DOI:10.1016/j.aquabot.2024.103808

Zofija Sinkevičienė , Donatas Naugžemys , Jurgita Butkuvienė

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Abstract

A combined study of morphology, stem anatomy, and the genetic markers (ITS1-ITS4 region of nuclear ribosomal DNA and rpl20-rps12 intergenic spacer of chloroplast DNA) was used to verify the identity of hybrid Potamogeton ×vilnensis Galinis previously recognized as P. gramineus × P. praelongus. Authentic herbarium material and newly collected specimens morphologically similar to the hybrid from the locus classicus (SE Lithuania) were used for comparative morphological, anatomical and molecular analyses. The study proved the paternity of P. lucens and P. praelongus and excluded the involvement of P. gramineus in hybridization and identity with P. ×angustifolius. This hybrid formula is shared with plants recorded in the Czech Republic and Denmark under the name P. ×jutlandicus Zalewska-Galosz. The site in Lithuania, known since 1961, is the first natural habitat of long-lived hybrid between P. lucens and P. praelongus whose origin has been confirmed by molecular markers. The scarce records of this taxon indicate that the knowledge of the hybrid species of Potamogeton and their distribution is insufficient and that more extensive regional studies, including molecular methods, are needed.

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鲜为人知的杂交种 Potamogeton ×vilnensis 起源的分子证据

通过对形态学、茎干解剖学和遗传标记（核核糖体 DNA 的 ITS1-ITS4 区域和叶绿体 DNA 的 rpl20-rps12 基因间距）的综合研究，验证了之前被认定为 P. gramineus × P. praelongus 的杂交种 Potamogeton ×vilnensis Galinis 的身份。标本馆的真实材料和新采集的、形态上与该杂交种相似的标本被用来进行形态学、解剖学和分子学比较分析。该研究证明了 P. lucens 和 P. praelongus 的亲子关系，并排除了 P. gramineus 参与杂交以及与 P. ×angustifolius 相同的可能性。×jutlandicus Zalewska-Galosz）的植物共享这一杂交公式。立陶宛的这一地点自 1961 年起就为人所知，是 P. lucens 和 P. praelongus 之间长寿杂交种的首个自然栖息地，其起源已被分子标记证实。该分类群的记录很少，这表明人们对 Potamogeton 的杂交种及其分布的了解还不够，需要进行更广泛的区域研究，包括分子方法。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.