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Lema, Anais Kimberley; Metegnier, Gabriel; Quéré, Julien; Latimier, Marie; Youenou, Agnes; Lambert, Christophe; Fauchot, Juliette; Le Gac, Mickael. |
Untangling the functional basis of divergence between closely related species is a step towards understanding species dynamics within communities at both the evolutionary and ecological scales. We investigated cellular (i.e: growth, domoic acid production, nutrient consumption) and molecular (transcriptomic analyses) responses to varying nutrient concentrations across several strains belonging to three species of the toxic diatom genus Pseudo-nitzschia. Three main results were obtained. First, strains from the same species displayed similar transcriptomic, but not necessarily cellular, responses to the experimental conditions. It showed the importance of considering intra-specific diversity to investigate functional divergence between species. Second, a... |
Tipo: Text |
Palavras-chave: Phenotype; Transcriptomics; Pseudo-nitzschia; Divergence; Nutrients. |
Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00482/59392/62157.pdf |
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猪熊, 壽; 永田, 美和; 細井, 栄嗣; 板本, 和仁; 奥田, 優; INOKUMA, Hisashi. |
全国8地域のニホンジカに寄生するタイレリアの18S rRNAおよびp33/34遺伝子を解析した. 18S rRNA遺伝子の相同性は99.7-100%であったが,山口県産ニホンジカのタイレリアp33/34遺伝子の相同性は,他地域のものに比べて塩基配列で68.7〜70.1%,アミノ酸配列で64,1〜70.0%と低く,ニホンジカのタイレリアには遺伝的に異なる株が存在することが示唆された. The 18S rRNA gene and the piroplasm major immunodominant protein gene (p33/34) of Theileria from various subspecies of sika deer in 8 different locations of Japan were analyzed. The similarity between 633 bp partial sequences of the 18S rRNA gene among various subspecies of sika deer was found to be between 99.7% and 100%. While the percent identities of the 412 bp partial p33/34 gene sequence and deduced amino acid sequences between Theileria of sika deer from Yamaguchi Prefecture and those found in deer from other Prefectures, were comparatively low, 68.7% to... |
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Palavras-chave: Cervue nipon; Divergence; Theileria sp. |
Ano: 2008 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4004 |
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Rosa,Thuanny Lins Monteiro; Araujo,Caroline Palacio de; Alexandre,Rodrigo Sobreira; Schmildt,Edilson Romais; Lopes,José Carlos. |
Abstract: The objective of this work was to evaluate the biometry of fruit and seed, and the diversity of paradise nut (Lecythis pisonis) genotypes. Fruit of 12 paradise nut genotypes were collected from plants in the northern region of the state of Espírito Santo and in the eastern region of the state of Minas Gerais, Brazil. Data were subjected to the analysis of variance, and means of the different genotypes were compared by Scott-Knott’s mean clustering test. The phenotypic diversity was analyzed using Mahalanobis’ generalized distance, and clustering, by Tocher’s optimization method and the graphical dispersion of canonical variables. The relative contribution of the characters to diversity was assessed by Singh’s method. The paradise nut genotypes... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lecythis pisonis; Characterization; Divergence; Genotypes; Sapucaia nut. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102502 |
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Reis,Edésio Fialho dos; Pinto,Jefferson Fernando Naves; Assunção,Hildeu Ferreira da; Silva,Danielle Fabíola Pereira da. |
Abstract: The objective of this work was to evaluate the genetic diversity of macaúba (Acrocomia aculeata) accessions from 35 municipalities of the state of Goiás, Brazil, in order to obtain information about the genetic variability and to provide subsidies for the commercial deployment of the culture in the Midwestern region of Brazil. The bunches were harvested with ripe fruits. The following were evaluated: fruit and almond lengths and diameters; the weights of fruits and almonds; the average number of almonds, as well as the oil contents in the almond and in the dehydrated fruit. The parameters that indicated significant contributions to the variability were fruit weight, fruit width, fruit length, and oil content in the almond. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acrocomia aculeata; Agroenergy; Almond quality; Biodiesel; Divergence; Oleaginous seed. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000400277 |
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Souza,Marcela A.; Fagundes,Daniela C.; Leal,Cecília G.; Pompeu,Paulo S.. |
In the present study, we assessed the ecomorphology of two species of Astyanax in streams with different substrates found in the Rio São Francisco Basin. The dominant substrate of each stream was defined as either "fine" (0 to 2 mm), "gravel" (2 to 250 mm), "rock" (> 250 mm), or "leaf bank". We analyzed a total of 22 ecomorphological attributes of Astyanax intermedius Eigenmann, 1908 (127 individuals) and Astyanax rivularis (Lütken, 1875) (238 individuals) adults. We detected significant ecomorphological differences between the populations of A. rivularis and A. intermedius from habitats with different types of substrates. However, the two species did not show the same morphological differences depending on the type of substrate. These results confirmed... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Convergence; Divergence; Ecomorphological attributes; Freshwater fish; Habitat diversity; Intraspecific differences. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000100006 |
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