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| Registros recuperados: 45 | |
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| Rolland, Jean-luc; Bonhomme, Francois; Lagardere, Francoise; Hassan, M; Guinand, Bruno. |
| Spatial and temporal population genetic structures of the common sole, Solea solea, were studied in Northeastern Atlantic and Mediterranean Sea populations, using three polymorphic exon-primed intron-crossing (EPIC) markers. Results demonstrated significant multilocus differentiation among Eastern Mediterranean and a group composed by Western Mediterranean and Atlantic populations (theta = 0.150, P < 0.001), but also suggested unrecorded genetic differentiation of the Adriatic Sea population. No pattern of isolation-by-distance was recorded across the range covered by sampling, from the Kattegat to the Aegean Sea. Conversely to genetically structured Mediterranean populations, Atlantic populations ranging from Denmark to Portugal could be considered as... |
| Tipo: Text |
Palavras-chave: Marine fish; Genetic structure; Introns; Common sole. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2400.pdf |
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| Vendrami, David L. J.; Houston, Ross D.; Gharbi, Karim; Telesca, Luca; Gutierrez, Alejandro P.; Gurney-smith, Helen; Hasegawa, Natsuki; Boudry, Pierre; Hoffman, Joseph I.. |
| Cultivated bivalves are important not only because of their economic value, but also due to their impacts on natural ecosystems. The Pacific oyster (Crassostrea gigas) is the world's most heavily cultivated shellfish species and has been introduced to all continents except Antarctica for aquaculture. We therefore used a medium-density single nucleotide polymorphism (SNP) array to investigate the genetic structure of this species in Europe, where it was introduced during the 1960s and has since become a prolific invader of coastal ecosystems across the continent. We analyzed 21,499 polymorphic SNPs in 232 individuals from 23 localities spanning a latitudinal cline from Portugal to Norway and including the source populations of Japan and Canada. We confirmed... |
| Tipo: Text |
Palavras-chave: Aquaculture; Crassostrea gigas; Genetic structure; High-density genotyping array; Inbreeding; Pacific oyster; Restriction site-associated DNA (RAD) sequencing; Single nucleotide polymorphism (SNP). |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00484/59561/62557.pdf |
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| Sosa-Gomez,Daniel R.; Delpin,Katiaíres E.; Almeida,Alvaro M.R.; Hirose,Edson. |
| The Neotropical Brown Stink Bug (NBSB), Euschistus heros (Fabricius), has a wide distribution in Brazilian soybean fields, being more important in the central region of the country. The species is the main target of insecticide applications for stink bug pest control. We determined the variability among and within populations of the NBSB by random amplification of polymorphic DNA (RAPD) analysis. Samples of NBSB were collected in soybean fields from Ubiratã (PR), Londrina (PR), Centenário do Sul (PR), Cândido Mota (SP), Ponta Porã (MS) and Sapezal (MT). Genomic DNA was extracted from the head to minimize DNA contamination by endoparasites. DNA was amplified with 10 mer primers. Fifteen primers produced 246 bands. The genetic similarity matrix was obtained,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: RAPD; Molecular marker; Genetic structure; Gene flow. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000200009 |
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| Silvestre,Ellida de Aguiar; Costa,Márcio da Silva; Silva,Pollyana Oliveira da; Bajay,Miklos Maximiliano; Pinheiro,José Baldin; Zucchi,Maria Imaculada; Campelo,José Elivalto Guimarães; Britto,Fábio Barros. |
| The objective of this study was to characterize the genetic variability of Anglo-Nubian goats using microsatellite markers. The study was conducted using herds from four municipalities of Central-Northern Piauí (Teresina, José de Freitas, Campo Maior, and Angical), where technical information is scarce. Seven markers suggested by FAO were used (ILSTS11, McM527, INRA23, ETH10, OarfCB304, OarfCB48, and MAF209). The samples were genotyped using a 7% polyacrylamide gel. The average number of alleles per locus was 4.0, with observed and expected heterozygosity of 0.38 and 0.55, respectively. Few deviations from the Hardy-Weinberg equilibrium were observed for each population. Only two loci deviated significantly in two localities. The coefficient of gene... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endogamy; Genetic structure; Microsatellite; Molecular markers. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000400155 |
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| GALLARDO,M.H; GONZÁLEZ,C; MENA,C; LOMOVASKY,B; MORRICONI,E; CLASING,E. |
| The correspondence between allozymic variation and specific differentiation was studied in four populations corresponding to the three nominal, allopatric species of clam genus Eurhomalea (E. rufa, E. lenticularis, E. exalbida) described for southern South America. Allozyme variation scored in 12 loci was high as indicated by heterozygosity levels (15.8-20.7 %) and by the presence of only three monomorphic loci (Hk-2, Icd-2, and Xdh-1). These high estimates of allelic variability were influenced by the low levels of interspecific genetic similarity (I = 0.64) and for the high conspecific values of genetic identity observed. The high estimates of substructuring found at the species level (F ST = 0.39) contrasted with the low differentiation (F ST = 0.027)... |
| Tipo: Journal article |
Palavras-chave: Allozymic variation; Genetic structure; Taxonomic status. |
| Ano: 2003 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2003000300013 |
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| Gomes,Regina Lucia Ferreira; Costa,Marcones Ferreira; Alves-Pereira,Alessandro; Bajay,Miklos Maximiliano; Viana,João Paulo Gomes; Valente,Sérgio Emílio dos Santos; Lopes,Ângela Celis de Almeida; Zucchi,Maria Imaculada; Pinheiro,José Baldin. |
| ABSTRACT Some germplasm collections have a high number of accessions, which makes it difficult to explore the genetic variability present in the germplasm bank due to the redundancy and the difficulty of detailed analysis of all conserved accessions. Therefore, our study aimed to analyze the genetic diversity of 153 lima bean (Phaseolus lunatus) accessions for the purpose of constructing a core collection. Eleven SSRs were used for this purpose. The 153 lima bean accessions can be represented by low redundancy using a minimum of 34 accessions, thus representing 22 % of the size of the entire germplasm bank. The core collection had a higher Shannon diversity index and expected heterozygosity (1.906 and 0.811, respectively) than those presented by the entire... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Germplasm; Genetic diversity; Genetic structure; Microsatellite markers. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000201100 |
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| Registros recuperados: 45 | |
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