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| Registros recuperados: 13 | |
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| AGUIRRE-PABÓN,J.C; OROZCO BERDUGO,G. Jr; NARVÁEZ BARANDICA,J.C. |
| The tiger shrimp (Penaeus monodon) is an Indo-Pacific species. Its global production between 1970 and 1980 exceeded all other shrimp species, which favored its introduction and cultivation outside its natural range in several countries of Africa, Europe, USA and South America. It is currently found in the coast of the Atlantic Ocean (Mexico, United States, Puerto Rico, Brazil, Guyana, Venezuela and Colombia). Despite the risk involved, no studies have been conducted to evaluate their impact as a possible invasive species and their genetic condition. This study evaluated the genetic status and population origin of P. monodon in the northernmost Colombian Caribbean, analyzing the mitochondrial DNA control region (mtDNA-CR). 16 individuals were randomly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological invasion; Caribbean Sea; Founder effect; Genetic relationships; Mitochondrial DNA. |
| Ano: 2015 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000100013 |
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| Gálvez-López,Didiana; Salvador-Figueroa,Miguel; Becerra-Leor,Enrique N.; González-Paz,Maurilio; Hernández-Delgado,Sanjuana; Mayek-Pérez,Netzahualcóyotl. |
| Most of mango (Mangifera indica L.) production in Chiapas, México is located at Soconusco region where a large morphological and genetic diversity have been detected due the free-pollination among plants. The characterization and identification of outstanding plants can be useful for mango diversity conservation as well as the use for mango breeding. Forty-one local mango accessions collected in five locations (Huehuetán, Pijijiapan, Tuxtla Chico, Tapachula, Escuintla) in the state of Chiapas, México, were subjected to AFLP analysis and then compared with 19 mango cultivars. AFLP analysis indicated high levels of polymorphisms among accessions (> 84 %). AMOVA analysis indicated significant genetic differentiation (F ST = 0.23743) among and within mango... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mangifera indica L.; M. odorata; AFLPs; Genetic relationships; Soconusco. |
| Ano: 2010 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952010000800004 |
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| Tagliaro,Cláudia Helena; Franco,Maria Helena Lartigau Pereira; Schneider,Maria Paula Cruz; Brito,Benito Guimarães de; Barbosa,Antonio Stockler. |
| The genetic variability of 14 protein systems encoded by 15 structural loci was investigated in blood samples of Piau and Caruncho pig breeds. The results were compared with those obtained previously for samples of Landrace, Large White, Duroc and Mouro. The degree of genetic variability obtained for Piau (He=0.114) was similar to that estimated for other breeds reared in Brazil (Landrace, He=0.116; Large White, He=0.119; Duroc, 0.095; Mouro, He= 0.130). Caruncho showed the lowest variability (He= 0.056). The gene frequencies at the polymorphic loci were used to evaluate the usefulness of these systems for paternity testing and the combined probabilities of paternity exclusion were estimated at 58% for the Piau and 36% for the Caruncho breed. Analysis of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Swine; Protein polymorphisms; Genetic relationships. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781999000200022 |
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| Tagliaro,Cláudia Helena; Franco,Maria Helena Lartigau Pereira; Weimer,Tania Azevedo. |
| The data of three protein polymorphisms were used to investigate the genetic relationships among the Landrace, Large White and Duroc swine breeds reared in Brazil, 12 other populations of these same breeds from various countries and a population of Belgium Landrace. The dendrogram, constructed from matrix of genetic distance coefficients, disclosed three large groups clustered by breed. Among them, the Landrace and the Large White showed in average closer resemblance (D= 0.203) than between them and Duroc (D= 0.241). It the three breeds, the smallest genetic distances were found between Brazilian and Cuban pig populations (Landrace: D = 0.060; Large White: D = 0.052; Duroc: D = 0.065), although there were not reports of pig exchanges between these two... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Swine; Protein polymorphisms; Genetic relationships. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781997000300021 |
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| Gill-Langarica,Homar R.; Muruaga-Martínez,José S.; Vargas-Vázquez,M.L. Patricia; Rosales-Serna,Rigoberto; Mayek-Pérez,Netzahualcoyotl. |
| A core collection of the common bean (Phaseolus vulgaris L.), representing genetic diversity in the entire Mexican holding, is kept at the INIFAP (Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias, Mexico) Germplasm Bank. After evaluation, the genetic structure of this collection (200 accessions) was compared with that of landraces from the states of Oaxaca, Chiapas and Veracruz (10 genotypes from each), as well as a further 10 cultivars, by means of four amplified fragment length polymorphisms (AFLP) +3/+3 primer combinations and seven simple sequence repeats (SSR) loci, in order to define genetic diversity, variability and mutual relationships. Data underwent cluster (UPGMA) and molecular variance (AMOVA) analyses. AFLP analysis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris L.; Amplified fragment length polymorphisms (AFLP); Germplasm bank; Genetic relationships; Simple sequence repeats (SSR). |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400012 |
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| Oliveira,Joelliton Domingos de; Igarashi,Maria Luiza Silveira de Paiva; Machado,Théa Mírian Medeiros; Miretti,Marcos Mateo; Ferro,Jesus Aparecido; Contel,Eucleia Primo Betioli. |
| The genetic relationships and structure of fourteen goat (Capra hircus) populations were estimated based on genotyping data from 14 goat populations (n = 410 goats) at 13 microsatellite loci. We used analysis of molecular variance (AMOVA), principal component analysis (PCA) and F statistics (F IS, F IT and F ST) to evaluate the genetic diversity (Ho, He and ad) of the goats. Genetic distances between the 14 goat populations were calculated from allelic frequency data for the 13 microsatellite markers. Moderate differentiation was observed for the populations of the undefined breeds (including the Anglo-Nubian-M breed), the naturalized Brazilian breeds (Moxotó, Canindé), the exotic purebred breeds (Alpine, Saanen, Toggenbourg and Anglo-Nubian) and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Goat; Microsatellite; Genetic distance; PCA; AMOVA; Genetic relationships; Genetic diversity; F statistics. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000300010 |
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| Martínez Marrero,Nadia; da Silva,Elizabete Cristina; Mitat Valdés,Alina; Ponce,Giselle; Benício da Silva,Regina C.; Paes Barbosa,Severino Benone; Uffo Reinosa,Odalys; Gomes Filho,Manoel Adrião. |
| Researches on genetic relationships among water buffalo populations are useful in supporting conservation decisions and designing of breeding schemes. The aim of this study was to assess the genetic relationships among Cuban Buffalypso/Carabao hybrids and Murrah and Jaffarabadi Brazilian buffaloes using nine cattle microsatellite markers. During the analysis, four loci were excluded due to the presence of null alleles, stuttering and gametic disequilibrium. Mean numbers of alleles and the heterozygosities observed and expected in the three populations were not significantly different. Heterozygosities found were above 60%. All five loci were in Hardy-Weinberg equilibrium. Wright´s index for estimating inbreeding were negative in the three populations. A... |
| Tipo: Journal article |
Palavras-chave: Bubalus bubalis; Buffalypso; Microsatellite markers; Null allele; Genetic relationships. |
| Ano: 2015 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2015000300003 |
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| Registros recuperados: 13 | |
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