Resultados de búsqueda - "molecular genetics"

Why, what, who and when: an overview of the Cassava Biotechnology Network (CBN) and current cassava biotechnology research worldwide por Thro, Ann Marie, Bonierbale, Merideth W., Roca, W., Best, R., Henry, Guy

“…The first molecular markers for important cassava traits are expected to be ready for plant breeding programs in 2 to 4 years, as are the first experimental products of cassava genetic transformation and gene cloning. A molecular genetic map of cassava is available for use this year. …”
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Construction of reference chromosome-scale pseudomolecules for potato: Integrating the potato genome with genetic and physical maps por Sharma, S.K., Bolser, D., Boer, J. de., Sonderkaer, M., Amoros, W., Carboni, M.F., D'Ambrosio, J.M., Cruz, G. de la, Genova, A. di, Douches, D.S., Eguiluz, M., Guo, X., Guzmán, F., Hackett, C.A., Hamilton, J.P., Li, G., Li, Y., Lozano, R., Maass, A., Marshall, D., Martínez, D., McLean, K., Mejia, N., Milne, L., Munive, S., Nagy, I., Ponce, O., Ramírez, M., Simon, R., Thomson, S.J., Torres, Y., Waugh, R., Zhang, Z., Huang, S., Visser, Richard G.F., Bachem, C.W.B., Sagredo, B., Feingold, S.E., Orjeda, G., Veilleux, R.E., Bonierbale, Merideth W., Jacobs, J.M.E., Milbourne, D., Martin, D.M.A., Bryan, Glenn J.

“…Primary anchoring of the DM genome assembly was accomplished by the use of a diploid segregating population, which was genotyped with several types of molecular genetic markers to construct a new ~936 cM linkage map comprising 2469 marker loci. …”
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VNTRbased diversity analysis of 2x and 4x fullsib Musa hybrids por Crouch, J., Crouch, H., Tenkouano, A., Ortíz, R.

“…However, there was no association between the molecular genetic similarity of hybrids to Calcutta 4 and the respective phenotypic distance index. …”
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Genetic diversity among pomegranate germplasm assessed by microsatellite markers por Badenes, María L., Zuriaga, Elena, Bartual, Julián, Pintová, Jitka

“…They were used for addressing the molecular genetic diversity and population structure of the collection. …”
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Phylogeny of the genus Pistacia as determined from analysis of the chloroplast genome por Parfitt, Dan E., Badenes, María L.

“…Classification within the genus Pistacia has been based on leaf morphology and geographical distribution. Molecular genetic tools (PCR amplification followed by restriction analysis of a 3.2-kb region of variable chloroplast DNA, and restriction fragment length polymorphism analysis of the Pistacia cpDNA with tobacco chloroplast DNA probes) provided a new set of variables to study the phylogenetic relationships of 10 Pistacia species. …”
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Avelsarbete med mjölkproducerande getter – fokus på Norge och Frankrike por Andersson, Julia

“…Future improvements include new selection traits based on molecular genetic information. In the work current breeding programs and objectives for milk producing goats in Europe are discussed. …”

Meta-analysis of quantitative trait loci for grain yield and component traits under reproductive-stage drought stress in an upland rice population por Trijatmiko, Kurniawan R., Supriyanta, Prasetiyono, Joko, Thomson, Michael J., Vera Cruz, Casiana M., Moeljopawiro, Sugiono, Pereira, Andy

“…The population was also evaluated for root pulling force, and a total of 201 single nucleotide polymorphism markers were used to construct the molecular genetic linkage map and QTL mapping. A QTL for GY under drought stress was identified in a region close to the sd1 locus on chromosome 1. …”
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Genetic mapping of resistance to bacterial blight disease in cassava (Manihot esculenta Crantz) por Jorge, V., Fregene, Martin A., Duque E., Myriam Cristina, Bonierbale, Merideth W., Tohme, Joseph M., Verdier, Valerie M.

“…Recent genetic mapping of an F1 cross (TMS 30572 × CM 2177–2) led to the construction of the first molecular genetic map of cassava. To better understand the genetics of resistance to CBB, we evaluated individuals of the F1 cross for CBB resistance by controlled greenhouse inoculations and visually assessed symptoms on days 7, 15, and 30 days after inoculation, using a scale where 0 = no disease and 5 = maximum susceptibility. …”
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The molecular background of equine sarcoids por Hörnaeus, Katarina

“…The aim of this study is to further characterize the molecular genetic background of the susceptibility of ES with the main focus on the MHC-region. …”

Prospects of breeding small ruminants for resistance to internal parasites por Woolaston, R.R., Baker, R.L.

“…In the longer term, it is desirable that selection criteria for all major diseases be developed that will be informative in healthy animals. Molecular genetic markers offer promise, but simple genetic markers have so far been as elusive as physiological traits to predict resistance in undiseased animals. …”
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Disentangling the origins of cultivated sweet potato (Ipomoea batatas (L.) Lam.) por Roullier, C., Duputie, A., Wennekes, P., Benoit, L., Fernández Bringas, V.M., Rossel, G., Tay, D., McKey, D., Lebot, V.

“…This hexaploid species could have had either an autopolyploid origin, from the diploid I. trifida, or an allopolyploid origin, involving genomes of I. trifida and I. triloba. We generated molecular genetic data for a broad sample of cultivated sweet potatoes and its diploid and polyploid wild relatives, for noncoding chloroplast and nuclear ITS sequences, and nuclear SSRs. …”
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Arbuscular mycorrhiza in landrace and modern wheat por Yngve, Klara

“…Finally, it is concluded that more molecular genetic research is needed in order to understand if arbuscular mycorrhiza in wheat has been affected by breeding for conventional cropping systems.…”
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Opportunities for marker-assisted selection (MAS) to improve the feed quality of crop residues in pearl millet and sorghum por Hash, C.T., Bhasker Raj, A.G., Lindup, S., Sharma, A., Beniwal, C.R., Folkertsma, R.T., Mahalakshmi, V., Zerbini, E., Blümmel, Michael

“…In the case of pearl millet, ICRISAT has been heavily involved with several UK-based collaborating research institutes, in development and initial application of the molecular genetic tools for marker-assisted breeding. We have obtained some useful experience in quantitative trait loci (QTL) mapping and marker-assisted selection (MAS) for stover yield, foliar disease resistance, and in vitro estimates of the nutritive value of various stover fractions for ruminants. …”
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Generation of expressed sequence tags as physical landmarks in the genome of Trypanosoma brucei por Djikeng, Appolinaire, Agufa, C., Donelson, J.E., Majiwa, Phelix A.O.

“…Previous molecular genetic studies on the African trypanosome have focused on only a few genes and gene products, the majority of which are concerned with surface antigenic variation: consequently, an insignificant number of the genes of this organism have been characterized to date. …”
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Identification and characterization of the Cassava core-clock gene Early Flowering 4 por Adeyemo, O. Sarah, Kolmos, E, Tohme, Joseph M., Chavarriaga Aguirre, Paul, Fregene, Martin A., Davis, S.J.

“…The angiosperm circadian clock has been well established from molecular-genetic studies in a temperate plant model. Conservation of clock function is less explored in plants from the tropics. …”
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Phenotypic characteristics of the Bonga sheep in Keffa Zone: Field mission Report por Markos, T., Ginbar, T.

“…A recently proposed study at a molecular genetic characterisation level will hopefully answer some vague areas.…”
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Genome wide insights of Ethiopian indigenous sheep populations reveal the population structure related to tail morphology and phylogeography por Amane, Agraw, Belay, G., Nasser, Y., Kyallo, Martina M., Dessie, Tadelle, Kebede, A., Getachew, T., Domelevo Entfellner, Jean-Baka, Edea, Zewdu, Hanotte, Olivier H., Mekuriaw, Getinet

“…Ethiopian sheep living in different climatic zones and having contrasting morphologies are a most promising subject of molecular-genetic research. Elucidating their genetic diversity and genetic structure is critical for designing appropriate breeding and conservation strategies.The study was aimed to investigate genome-wide genetic diversity and population structure of eight Ethiopian sheep populations.A total of 115 blood samples were collected from four Ethiopian sheep populations that include Washera, Farta and Wollo (short fat-tailed) and Horro (long fat-tailed). …”
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Development of reference transcriptomes for the major field insect pests of cowpea: a toolbox for insect pest management approaches in West Africa por Agunbiade, T.A., Sun, W., Coates, B.S., Djouaka, R.F., Tamo, Manuele, Ba, Malick N., Binso-Dabire, L., Baoua, I., Olds, B.P., Pittendrigh, Barry Robert

“…Furthermore, 742, 97, 607 and 180 single nucleotide polymorphisms (SNPs) were respectively predicted among A. curvipes, A. craccivora, C. tomentosicollis and M.sjostedti transcripts, and will likely be valuable tools for future molecular genetic marker development. These results demonstrate that Roche 454-based transcriptome sequencing could be useful for the development of genomic resources for cowpea pest insects in West Africa.…”
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Genome-wide temporal-spatial gene expression profiling of drought responsiveness in rice por Wang, Di, Pan, Yajiao, Zhao, Xiuqin, Zhu, Ling-Hua, Fu, Binying, Li, Zhikang

“…Genome-wide gene expression profiling was used as the initial point to dissect molecular genetic mechanism of this complex trait and provide valuable information for the improvement of drought tolerance in rice. …”
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Genomic tools in cowpea breeding programs: status and perspectives por Boukar, O., Fatokun, C.A., Huynh, B., Roberts, P.A., Close, T.J.

“…Cowpea improvement could also benefit from modern breeding methods based on molecular genetic tools. A number of advances in cowpea genetic linkage maps, and quantitative trait loci associated with some desirable traits such as resistance to Striga, Macrophomina, Fusarium wilt, bacterial blight, root-knot nematodes, aphids, and foliar thrips have been reported. …”
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