Resultados de búsqueda - "recession"

Discovery of an amylose-free starch mutant in cassava (Manihot esculenta Crantz) por Ceballos, H., Sánchez, T., Morante, N, Fregene, Martin A., Dufour, D.L., Smith, A.M., Denyer, K, Pérez Velásquez, Juan Carlos, Calle, F., Mestres, C.

“…A large number of self-pollinations have been made in search of useful recessive traits. During 2006 harvests an S1 plant produced roots that stained brownish-red when treated with an iodine solution, suggesting that it had lower-than-normal levels of amylose in its starch. …”
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Cassava haplotype map highlights fixation of deleterious mutations during clonal propagation por Ramu, P., Esuma, W., Kawuki, R.S., Rabbi, Ismail Y., Egesi, Chiedozie N., Bredeson, J.V., Bart, R.S., Verma, J., Buckler, E.S., Lu, F

“…We found that (i) although domestication has modified starch and ketone metabolism pathways to allow for human consumption, the concomitant bottleneck and clonal propagation have resulted in a large proportion of fixed deleterious amino acid changes, increased the number of deleterious alleles by 26%, and shifted the mutational burden toward common variants; (ii) deleterious mutations have been ineffectively purged, owing to limited recombination in the cassava genome; (iii) recent breeding efforts have maintained yield by masking the most damaging recessive mutations in the heterozygous state but have been unable to purge the mutation burden; such purging should be a key target in future cassava breeding.…”
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Inheritance of black sigatoka disease resistance in plantainbanana (Musa spp.) hybrids por Ortíz, R., Vuylsteke, D.R.

“…Segregation ratios for resistance at the 2x level fitted a genetic model having one major recessive resistance allele (bs1) and two independent alleles with additive effects (bsr2 and bsr3). …”
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Effect of the black sigatoka resistance locus bs1 and ploidy level on fruit and bunch traits of plantain-banana hybrids por Craenen, K., Ortíz, R.

“…The host resistance response to black sigatoka is under the control of at least three different genes, one major recessive gene bSI and two other independent additive alleles. …”
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Effect of the parthenocarpy gene P1 and ploidy in bunch and fruit traits of plantain and banana hybrids por Ortíz, R., Vuylsteke, D.R.

“…Linear correlation and regression analyses revealed that bunch weight and fruit weight and size were positively influenced by both ploidy increases and change of recessive to dominant alleles at the P1 locus. Moreover, significant multiple regression models, including ploidy and number of copies of the P1 allele as independent variables, accounted for most of the phenotypic variation for bunch and fruit traits. …”
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Effect of the black sigatoka resistance gene bs1 and ploidy level in fruit and bunch traits of plantain banana hybrids por Craenen, K., Ortíz, R.

“…The host resistance response to black sigatoka is under the control of at least three different genes, one major recessive gene bs1 and two other independent additive alleles. …”
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Sources of resistance to Pseudomonas syringae pv. phaseolicola races in Phaseolus vulgaris por Taylor, JD, Teverson, D.M., Davis, J.H.C.

“…It is possible that several of the accessions in this category carry the recessive gene derived from PI 150414. Other accessions were of unknown parentage and may represent new sources of quantitative, potentially race non-specific, resistance. …”
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Resistance status of upland NERICA rice varieties to termite damage in northcentral Nigeria por Agunbiade, T.A., Nwilene, F.E., Onasanya, A., Semon, M., Togola, A., Tamo, Manuele, Falola, O.O.

“…The resistance status of NERICA rice varieties to termite attack was classified into 4 groups as follows: Moderately Resistant (MR), Moderately Susceptible with recessive resistance (MSr), Moderately Susceptible (MS) and Highly Susceptible (HS) according to cluster analysis. …”
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Genetic improvement for the sustainable management of resistance por Craenen, K., Ortíz, R.

“…Partial resistance owing to a recessive major gene (bs1 ) coupled with at least two additive minor genes (bsri ) appears to be durable because this genetic system slows disease development in the host plant. …”
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Inverkan av den genetiska defekten Complex Vertebral Malformation på fruktsamheten hos SLB por Persson, Anna

“…Complex Vertebral Malformation (CVM) is an autosomal recessive inherited defect in the Holstein breed. The defect has lead to structurally malformed calves and losses of pregnancies. …”

Hunden som modell för ärftlig retinopati hos människa por Berger, Susanna

“…Retinopathy has been observed to exhibitautosomal recessive-, autosomal dominant-, x-bound- and mitochondrial inheritance pattern. …”

Breeding for bruchid resistance in cowpea por Singh, B.B., Singh, S.R.

“…Because bruchid resistance in cowpea is controlled by 2 pairs of recessive genes, any outcrossing reduces the proportion of resistant plants in succeeding generations. …”
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Challenge of virus disease threats to ensuring sustained uptake of vitamin-A-rich sweetpotato in Africa por Kreuze, Jan F., Cuéllar, Wilmer Jose, Low, Jan W.

“…Breeding progress to generate resistant varieties has been slow due to rare and recessive occurrence of resistance in breeding populations. …”
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Understanding circularity and transformative approaches and their role in achieving sustainability por Nhamo, L., Mpandeli, S., Liphadzi, S., Mabhaudhi, Tafadzwanashe

“…However, the reactive interventions that included the lockdowns implemented during the peak of the COVID-19 pandemic later resulted in job losses, company closures, debts, and economic recessions, demonstrating that linear models over-emphasise a limited set of system attributes, mainly efficiency, at the expense of other critical aspects. …”
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Characterization of a putative rice mutant for reaction to rice tungro disease por Zenna, N.S., Cabauatan, P.Q., Baraoidan, M., Leung, H., Choi, I.-R.

“…All F1 plants were susceptible to RTSV, whereas F2 and F3 progenies segregated into resistant and susceptible phenotypes in a 1:3 ratio, indicating that the resistance is controlled by a single recessive locus. Most of the F3 lines resistant to RTSV were also GLH resistant, suggesting that the resistance to RTSV and GLH was governed by the same locus. …”
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Diallel Analysis of Callus Induction and Green-Plant Regeneration in Rice Anther Culture por Quimio, C.A., Zapata, F.J.

“…Further analysis showed gene action to be partially dominant with high response being highly recessive and controlled by a few genes. There were no indications of inter‐allelic interaction.…”
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Inheritance of temperature sensitivity of the photoperiod response in common bean (Phaseolus vulgaris L.) por White, Jeffrey W., Kornegay, Julia L., Cajiao V., César Hernando

“…The name Tip, for “temperature insensitivity of photoperiod response”, is proposed for this gene, with the recessive form of this gene conditioning earlier flowering at cooler temperatures with long daylengths. …”
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Gene complementarity of resistance to the cassava mosaic disease among African cassava accessions por Lokko, Y., Dixon, Alfred G.O., Offei, Samuel Kwame, Danquah, E.Y.

“…Effective factors contributed by the susceptible parents were recessive. Among the resistant accessions, the results further showed that the genes for resistance are nonallelic and not linked. …”
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Inheritance of shortday induced dwarfing in photesensitive cowpeas por Ishiyaku, M., Singh, B.

“…The genetic segregation revealed that short-day-induced dwarfing of PS is controlled by a single recessive gene pair which is designated as 'psps (photosensitive). …”
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Upland rice composite population breeding and selection of promising lines for Colombian savannah ecosystem por Chatel, M, Ospina Rey, Yolima, Rodríguez, F., Lozano, VH, Delgado, H.

“…The development and enhancement by recurrent selection of upland rice composite populations are the new breeding strategies. Using a recessive male-sterile gene (ms), the development of rice population was made easier. …”
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