Juliana K. Ziemmer, Patrícia Sperotto, Leila N. Vieira, Hugo P. F. Fraga, Erika Amano, Marcelo Reginato, Renato Goldenberg
{"title":"Genome size and guard cell length are associated in four species of Miconia (Miconieae, Melastomataceae)","authors":"Juliana K. Ziemmer, Patrícia Sperotto, Leila N. Vieira, Hugo P. F. Fraga, Erika Amano, Marcelo Reginato, Renato Goldenberg","doi":"10.1007/s40415-023-00962-0","DOIUrl":null,"url":null,"abstract":"<p><i>Miconia</i> Ruiz & Pav. (Melastomataceae) is the seventh largest genus of flowering plants, but despite the great diversity of species (ca. 1900), no genome size (GS) studies have been published on the group. Studies have shown that GS can strongly predict phenotypic characteristics such as guard cell length, stomatal density, and epidermal cell area. As more genome sizes become available, a more comprehensive understanding of the role that GS variation plays in cellular characteristics emerges. Here, for the first time, we estimate GS by flow cytometry in four <i>Miconia</i> species, <i>Miconia australis</i> (Cham.) R. Goldenb., <i>Miconia hyemalis</i> St. Hil. & Naud. ex Naud., <i>Miconia sellowiana</i> (DC.) Naudin, and <i>Miconia nianga</i> (DC.) R.Goldenb.). Subsequently, we carried out a comparative analysis of the relationship between GS and three phenotypic characteristics: guard cell length, stomatal density, and epidermal cell area. The estimated GS ranged from 0.56 to 1.2 pg, and this variation may be attributed to the distinct reproductive modes among the species analyzed. We found a strong positive correlation between GS and guard cell length (<i>r</i><sup>2</sup> = 0.92) and a low correlation in stomatal density and epidermal cell area (<i>r</i><sup>2</sup> = 0.07 and 0.06, respectively). In this pioneering study, we provide some conclusions or speculations, and point to new questions yet to be explored in <i>Miconia</i>.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1007/s40415-023-00962-0","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Miconia Ruiz & Pav. (Melastomataceae) is the seventh largest genus of flowering plants, but despite the great diversity of species (ca. 1900), no genome size (GS) studies have been published on the group. Studies have shown that GS can strongly predict phenotypic characteristics such as guard cell length, stomatal density, and epidermal cell area. As more genome sizes become available, a more comprehensive understanding of the role that GS variation plays in cellular characteristics emerges. Here, for the first time, we estimate GS by flow cytometry in four Miconia species, Miconia australis (Cham.) R. Goldenb., Miconia hyemalis St. Hil. & Naud. ex Naud., Miconia sellowiana (DC.) Naudin, and Miconia nianga (DC.) R.Goldenb.). Subsequently, we carried out a comparative analysis of the relationship between GS and three phenotypic characteristics: guard cell length, stomatal density, and epidermal cell area. The estimated GS ranged from 0.56 to 1.2 pg, and this variation may be attributed to the distinct reproductive modes among the species analyzed. We found a strong positive correlation between GS and guard cell length (r2 = 0.92) and a low correlation in stomatal density and epidermal cell area (r2 = 0.07 and 0.06, respectively). In this pioneering study, we provide some conclusions or speculations, and point to new questions yet to be explored in Miconia.
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.