Gene effects of Cicer reticulatum on qualitative and quantitative traits in the cultivated chickpea

2017 ◽  
Vol 136 (6) ◽  
pp. 939-947 ◽  
Author(s):  
Alper Adak ◽  
Duygu Sari ◽  
Hatice Sari ◽  
Cengiz Toker
Keyword(s):  
Quantitative Traits ◽  
Gene Effects ◽  
Qualitative And Quantitative ◽  
Cicer Reticulatum

scholarly journals Fluxes and Metabolic Pools as Model Traits for Quantitative Genetics. I. The L-Shaped Distribution of Gene Effects

Genetics ◽  
1999 ◽  
Vol 153 (4) ◽  
pp. 2001-2012 ◽  
Author(s):  
Bruno Bost ◽  
Christine Dillmann ◽  
Dominique de Vienne
Keyword(s):  
Enzyme Activity ◽  
Metabolic Pathways ◽  
Quantitative Traits ◽  
Intrinsic Property ◽  
Gene Effects ◽  
Analytical Approximations ◽  
Mean And Variance ◽  
The Individual ◽  
Metabolic Control Theory ◽  
Control Coefficients

Abstract The fluxes through metabolic pathways can be considered as model quantitative traits, whose QTL are the polymorphic loci controlling the activity or quantity of the enzymes. Relying on metabolic control theory, we investigated the relationships between the variations of enzyme activity along metabolic pathways and the variations of the flux in a population with biallelic QTL. Two kinds of variations were taken into account, the variation of the average enzyme activity across the loci, and the variation of the activity of each enzyme of the pathway among the individuals of the population. We proposed analytical approximations for the flux mean and variance in the population as well as for the additive and dominance variances of the individual QTL. Monte Carlo simulations based on these approximations showed that an L-shaped distribution of the contributions of individual QTL to the flux variance (R2) is consistently expected in an F2 progeny. This result could partly account for the classically observed L-shaped distribution of QTL effects for quantitative traits. The high correlation we found between R2 value and flux control coefficients variance suggests that such a distribution is an intrinsic property of metabolic pathways due to the summation property of control coefficients.

Character of inheritance of economic markings in flax

2018 ◽  
pp. 53-59
Author(s):  
Oleksandr Drozd ◽  
Yevhen Zaika ◽  
T Pyvovar
Keyword(s):  
Genetic Control ◽  
Quantitative Traits ◽  
Second Generation ◽  
High Efficiency ◽  
Source Material ◽  
Qualitative And Quantitative ◽  
F2 Hybrids ◽  
First And Second Generation ◽  
Actual Ratio ◽  
Selection Of

In the first and second generation of hybrids revealed different character of inheritance of basic qualitative and quantitative traits – dominance, heterosis, over-domination and intermediate inheritance, which allows to assume high efficiency of individual selections in the following generations, with the selection of transgressive forms. The actual ratio of distribution groups in F2 hybrids and the genetic control of these traits in parental forms by weight of 1000 seeds were determined. The source material and the perspective hybrid combinations in the breeding nursery were studied and the perspective numbers were distinguished according to the complex of features.

Genetic variability, heritability and genetic advance studies for different characters on green fodder yield in oat (Avena sativa L.)

2016 ◽  
Vol 36 (2) ◽  
Author(s):  
Harinarayan Bind ◽  
Baudh Bharti ◽  
M. K. Pandey ◽  
Sanjeev Kumar ◽  
Vishwanath ◽  
...  
Keyword(s):  
Avena Sativa ◽  
Harvest Index ◽  
Dry Matter ◽  
Quantitative Traits ◽  
Genetic Advance ◽  
Gene Effects ◽  
Effective Selection ◽  
Green Fodder ◽  
Fodder Yield ◽  
Additive Gene

The experimental material for present study consisted of 30 diverse genotypes of oat. Observation were recorded on 11 quantitative traits in oat. High estimates of heritability (broad sense) were obtained for all the characters. The magnitude of PCV as expected was greater than the corresponding GCV for all the characters indicating importance of environment in expression of characters On the basis of result Out of 11 characters studied seeds per panicle, dry matter yield per plant, green fodder yield per plant and harvest index showed high GCV and heritability coupled with high genetic advance as percent of mean which revealed that these four traits might be under control of additive gene effects and therefore they are more reliable for effective selection.

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