Results 291 to 300 of about 53,399 (326)

Removal of undesirable genes using yeast backcrossing

Journal of Bioscience and Bioengineering
4-Vinylguaiacol (4-VG) is one of the causative compounds for the phenolic odor characteristics of brewed liquor. In the case of Japanese sake brewing, 4-VG is formed through the decarboxylation of ferulic acid produced by rice koji enzymes from steamed rice.
Nobuo Fukuda, Mio Takeuchi
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Linkage Drag in Backcross Breeding in Barley

Journal of Heredity, 1989
Theorie de la longueur segmentable et de la retention du genome de fond residuel lors des croisements retour etudie a l'aide de 15 marqueurs isozymique et de 3 loci des proteines de la graine repartis sur 4 chromosomes chez l ...
A. H. D. Brown, G. J. Lawrence, M. Jenkin, J. Douglass, E. Gregory   +4 more
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Cytonuclear models of epistatic mating with backcrossing and selection

Theoretical Population Biology, 2005
We develop hybrid zone models that explore the combined effects of mating system and either backcrossing or viability selection on the disequilibria between nuclear and cytoplasmic genes. In the epistatic mating plus backcrossing model, we find patterns of permanent cytonuclear disequilibria like those found when epistatic mating is the only factor, as
Dakin, Elizabeth E., Asmussen, Marjorie A.   +1 more
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QTL Mapping in Intercross and Backcross Populations

2009
In the past two decades, various statistical approaches have been developed to identify quantitative trait locus with experimental organisms. In this chapter, we introduce several commonly used QTL mapping methods for intercross and backcross populations.
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Advanced backcross QTL analysis in barley (Hordeum vulgare L.)

Theoretical and Applied Genetics, 2003
This paper reports on the first advanced backcross-QTL (quantitative trait locus) project which utilizes spring barley as a model. A BC(2)F(2) population was derived from the initial cross Apex ( Hordeum vulgare ssp. vulgare, hereafter abbreviated with Hv) x ISR101-23 ( H. v. ssp. spontaneum, hereafter abbreviated with Hsp).
K, Pillen, A, Zacharias, J, Léon
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Production of Rust-resistant vulgare Wheats by Backcrossing

Nature, 1952
ONE of the main agricultural problems in Egypt is the susceptibility of all vulgare wheats to black stem rust. Severe losses are sometimes experienced1, and even in the mildest seasons not less than 10 per cent of the crop is lost2.
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Backcross method

2021
Dhan Pal Singh, Asheesh K. Singh, Arti Singh   +2 more
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Backcross Breeding: Conventional & Molecular Approach

The population of the globe will increase to 9.8 billion people by the year 2050. With the ever-increasing demand of the rising population, it is very important to increase food production. Transforming the elite cultivar through backcrossing can be a vital approach.
Niharika Saharia, Richa Bora, Partha Pratim Behera   +2 more
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Constancy of Cytoplasmic Property during Successive Backcrosses

The American Naturalist, 1967
In summary, (1) male sterility and vegetative retardation in emmer wheat with ovata cytoplasm is not changed in remote offspring; (2) pollen restoration by the nuclear genes of T. dicoccoides is not based on the alteration of the cytoplasmic factor itself; (3) vegetative retardation in ovata plants with durum cytoplasm is not changed in remote ...
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Expectations of means and genetic variances in backcross populations

Theoretical and Applied Genetics, 1984
The genetic variance among F2-derived lines of backcrosses (BCgF2-derived lines) depends on the backcross generation (g), the number of F1 plants crossed and selfed in generations 1 through g, and the number of BCgF2-derived lines evaluated. Additive genetic variance decreases linearly with backcrossing when one BCF1 plant per generation is crossed and
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