Resultados de búsqueda - "molecular genetics"

Analysis of two putative candidate genes for isometamidium resistance in trypanosoma congolense. por Souza, M.S. de

“…Elucidation of the molecular genetic basis of this phenotype may contribute to an understanding of the mechanisms of development of resistance to the trypanocides. …”
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Biotechnological approaches to plantain and banana improvement at IITA por Vuylsteke, D.R., Swennen, Rony L.

“…Cell culture and RFLP mapping, both essential to the future implementation of molecular genetic techniques in Musa improve ment, are being researched in collaboration with advanced laboratories.…”
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Comparative molecular analysis of isogenic clones of Trypanosoma (Nanommonas) congolense that differ in their response to isometamidium chloride por Majiwa, Phelix A.O., Maina, M., Peregrine, A.S., Kasumba, I.

“…Analysis of these should provide clues regarding molecular genetic basis of T. congolense resistance to isometamidium chloride.…”
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Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs por Samaraweera, A.M., Silva, P., Abeykone, N.D.F., Ibrahim, Mohamed N.M., Okeyo Mwai, Ally, Han Jianlin

“…Traditional ‘random’ sampling strategy for molecular characterization has revealed low genetic differentiation and weak genetic structure among Asian and African indigenous, non-descript chicken populations although they carried high within-population phenotypic and molecular genetic diversity. In the present study, 192 backyard chickens collected following a nearly ‘complete’ sampling strategy for all adult birds within flocks of 75 households in five villages at two sites in Sri Lanka were genotyped using 20 microsatellite markers. …”
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Genome-wide gene expression profiling of introgressed indica rice alleles associated with seedling cold tolerance improvement in a japonica rice background por Zhang, Fan, Huang, Liyu, Wang, Wensheng, Zhao, Xiuqin, Zhu, Ling-Hua, Fu, Binying, Li, Zhikang

“…Genome-wide gene expression profiling is an efficient way to decipher the molecular genetic mechanisms of CT enhancement and to provide valuable information for CT improvement in rice molecular breeding. …”
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The lowest hanging fruit: Beneficial gene knockouts in past, present, and future crop evolution por Monroe, J.G., Arciniegas Vega, Juan Pablo, Moreno, J.L., Sánchez, F., Sierra, S., Valdés, S., Torkamaneh, D., Chavarriaga, P.

“…Recent advances in the generation of whole genome sequence data and functional investigations into the molecular genetic basis of crop traits continue to reveal the existence of considerable beneficial loss of function in crop species. …”
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The International Rice Information System. A platform for meta-analysis of rice crop data por McLaren, Christopher Graham, Bruskiewich, Richard M., Portugal, Arllet M., Cosico, Alexander B.

“…New components are now being added to the International Rice Information System to handle the diversity of rice functional genomics data including genomic sequence data, molecular genetic data, expression data, and proteomic information. …”
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Comparison of DNA marker and pedigree-based methods of genetic analysis of plantain and banana (Musa spp.) clones; I: estimation of genetic relationships por Tenkouano, A., Crouch, J., Crouch, H., Vuylsteke, D.R., Ortíz, R.

“…However, the application of molecular genetic analysis may dramatically improve breeding efficiency. …”
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New Rice for Africa (NERICA) cultivars exhibit different levels of post-attachment resistance against the parasitic weeds Striga hermonthica and Striga asiatica por Cissoko, M., Boisnard, A., Rodenburg, J., Press, M.C., Scholes, J.D.

“…The elucidation of the molecular genetic basis of the resistance mechanisms and tolerance would allow the development of cultivars with multiple, durable resistance for use in farmers' fields.…”
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Locating Pleistocene refugia: comparing phylogeographic and ecological niche model predictions por Waltari, Eric, Hijmans, Robert J., Peterson, A. Townsend, Nyári, Árpád S., Perkins, Susan L., Guralnick, Robert P.

“…Here, we compare and contrast ENM-based reconstructions of LGM refugial locations with those resulting from the more traditional molecular genetic and phylogeographic predictions. We examined 20 North American terrestrial vertebrate species from different regions and with different range sizes for which refugia have been identified based on phylogeographic analyses, using ENM tools to make parallel predictions. …”
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Selection mapping of loci for quantitative disease resistance in a diverse maize population por Wisser, RJ, Murray, SC, Kolkman, Judith M., Ceballos, H., Nelson, R.J.

“…The selection response of a complex maize population improved primarily for quantitative disease resistance to northern leaf blight (NLB) and secondarily for common rust resistance and agronomic phenotypes was investigated at the molecular genetic level. A tiered marker analysis with 151 simple sequence repeat (SSR) markers in 90 individuals of the population indicated that on average six alleles per locus were available for selection. …”
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A N'Dama cattle resource population for research on trypanotolerance por Wissocq, N.M., Monsengo, B., D'Ieteren, G.D.M., Mommens, G.

“…Parentage (sire) determination in the experimental population is done through molecular genetic markers (micro-satellites). In order to evaluate the genetic diversity within the experimental population, 50 unrelated bulls were genotyped for 33 bovine microsatellites, mapping 19 chromosomes. …”
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Bevarande av de svenska lantraserna, populationsgenetiska och molekylärgenetiska metoder por Magnusson, Sandra

KASPar SNP genetic map of cassava for QTL discovery of productivity traits in moderate drought stress environment in Africa por Ewa, F., Asiwe, J.A.N., Okogbenin, Emmanuel, Ogbonna, A.C., Egesi, Chiedozie N.

“…This study was conducted to explore KASpar SNPs to generate more molecular tools to enhance genetic dissection of elite African germplasm for improved cassava productivity in dry environments of Africa where molecular resources are highly limited for crop improvement. To aid molecular genetic analysis of traits, a linkage map covering 1582.8 cM with an average resolution of 3.69 cM was constructed using 505 polymorphic SNP markers distributed over 21 linkage groups. …”
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Morphological variation and reproductive incompatibility of three coconutmiteassociated populations of predatory mites identified as Neoseiulus paspalivorus ( Acari: Phytoseiidae) por Sourassou, N.F., Hanna, R., Zannou, I., Moraes, G. de, Negloh, K., Sabelis, M.W.

“…These results indicate that the tested specimens are distinct biological entities despite morphological similarity. Further molecular genetic studies are therefore proposed, including screening for endosymbionts and assessment of genetic differentiation, to determine the cause of reproductive incompatibility and to clarify the taxonomic relationship between those populations.…”
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Epigenetic lessons from transgenic plants In: Floricultural, ornamental and plant biotechnology: advances and topical issues por Ingelbrecht, I.L., Mirkov, T.E., Dixon, Alfred G.O., Menkir, A.

“…Transgenic plant studies have lead to the breakthrough discovery of RNA silencing as a conserved mechanism for gene regulation across kingdoms. Recent molecular genetic studies have revealed a major role for RNA silencing in the formation of silent chromatin, characterized by histone modifications and dense DNA methylation. …”
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Host Adaptation of Tetranychus urticae Populations in Clementine Orchards with a Festuca arundinacea Cover May Contribute to Its Natural Control por Aguilar-Fenollosa, Ernestina, Pina, Tatiana, Gómez-Martínez, María A., Hurtado-Ruiz, Mónica A., Jaques, Josep A.

“…Because local adaptation implies mean deme fitness to be systematically higher for the sympatric deme x habitat combinations than for the allopatric ones, these results can be taken as indicative of occurrence of local adaptation in T. urticae. Molecular genetic analyses with microsatellite markers support this conclusion and indicate that host adaptation of T. urticae found in our system may indeed contribute to a better natural regulation of this mite.…”
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Does host adaptation of Tetranychus urticae populations in clementine orchards with a Festuca arundinacea cover contribute to a better natural regulation of this pest mite? por Aguilar-Fenollosa, Ernestina, Pina, Tatiana, Gómez-Martínez, María A., Hurtado-Ruiz, Mónica A., Jaques, Josep A.

“…Because local adaptation implies mean deme fitness to be systematically higher for the sympatric deme x habitat combinations than for the allopatric ones, these results can be taken as indicative of occurrence of local adaptation in T. urticae. Molecular genetic analyses with microsatellite markers support this conclusion and indicate that local adaptation of T. urticae found in our system may indeed contribute to a better natural regulation of this mite.…”
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Indigenous sheep resources of Ethiopia: Types, production systems and farmers preferences por Gizaw, Solomon, Komen, Hans, Hanotte, Olivier H., Arendonk, Johan A.M. van

“…Assessment of the genetic distinctiveness of the traditional sheep types is important for developing rational conservation-based improvement programs. Molecular genetic assessment of the population structure is a follow up activity.…”
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DNA markers for forage and livestock improvement por Tarawali, Shirley A., Rege, J.E.O., Hanotte, Olivier H., Hanson, Jean

“…For example, research on ruminant genetics and forage resources throughout sub-Saharan Africa (formerly carried out by ILCA) has combined with molecular genetic expertise of ruminant health (formerly represented by ILRAD). …”
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