Color Preferences in Quail Chicks: Generalization of the Effects of Genetic Selection

Behaviour ◽  
1978 ◽  
Vol 65 (1-2) ◽  
pp. 263-269 ◽  
Author(s):  
Kovach Joseph K.

Japanese quail (C. coturnix japonica) were artificially selected for early preferences of blue over red and red over blue. Subjects were drawn from the 2nd and 8th generations of the selected lines and were tested for color choices by five different color pairs, in addition to the blue-red pair used for selection. Eight generations of selection for choices between blue and red modified choice responses to all color combinations. Maximum preferences were not shown in the selected choices between blue and red, but in the choice of green over red in the subjects from the line selected for preference of blue and in the choice of yellow over blue in the subjects from the line selected for preference of red.

2000 ◽  
Vol 89 (4) ◽  
pp. 1608-1616 ◽  
Author(s):  
Philippe Houle-Leroy ◽  
Theodore Garland ◽  
John G. Swallow ◽  
Helga Guderley

Selective breeding is an important tool in behavioral genetics and evolutionary physiology, but it has rarely been applied to the study of exercise physiology. We are using artificial selection for increased wheel-running behavior to study the correlated evolution of locomotor activity and physiological determinants of exercise capacity in house mice. We studied enzyme activities and their response to voluntary wheel running in mixed hindlimb muscles of mice from generation 14, at which time individuals from selected lines ran more than twice as many revolutions per day as those from control (unselected) lines. Beginning at weaning and for 8 wk, we housed mice from each of four replicate selected lines and four replicate control lines with access to wheels that were free to rotate (wheel-access group) or locked (sedentary group). Among sedentary animals, mice from selected lines did not exhibit a general increase in aerobic capacities: no mitochondrial [except pyruvate dehydrogenase (PDH)] or glycolytic enzyme activity was significantly ( P < 0.05) higher than in control mice. Sedentary mice from the selected lines exhibited a trend for higher muscle aerobic capacities, as indicated by higher levels of mitochondrial (cytochrome- c oxidase, carnitine palmitoyltransferase, citrate synthase, and PDH) and glycolytic (hexokinase and phosphofructokinase) enzymes, with concomitant lower anaerobic capacities, as indicated by lactate dehydrogenase (especially in male mice). Consistent with previous studies of endurance training in rats via voluntary wheel running or forced treadmill exercise, cytochrome- c oxidase, citrate synthase, and carnitine palmitoyltransferase activity increased in the wheel-access groups for both genders; hexokinase also increased in both genders. Some enzymes showed gender-specific responses: PDH and lactate dehydrogenase increased in wheel-access male but not female mice, and glycogen phosphorylase decreased in female but not in male mice. Two-way analysis of covariance revealed significant interactions between line type and activity group; for several enzymes, activities showed greater changes in mice from selected lines, presumably because such mice ran more revolutions per day and at greater velocities. Thus genetic selection for increased voluntary wheel running did not reduce the capability of muscle aerobic capacity to respond to training.


1983 ◽  
Vol 25 (5) ◽  
pp. 450-456 ◽  
Author(s):  
D. E. Bernon ◽  
P. B. Siegel

The genetics of mating behavior in Japanese quail was investigated in replicated lines selected for high or low number of completed matings and the random bred control which served as the base population for the selected lines. Comparisons involved the parental lines, F1, F2, and backcross generations. Results indicate that mating frequency is influenced by additive and nonadditive genetic variation with the former being the primary heritable influence. The relationships between mating behavior, cloacal gland size, and relative aggressiveness suggest that selection for mating frequency influences factors commonly affecting these traits.


2016 ◽  
Vol 95 (11) ◽  
pp. 2570-2575 ◽  
Author(s):  
M.M. Fathi ◽  
A.E. El-Dlebshany ◽  
M. Bahie El-Deen ◽  
L.M. Radwan ◽  
G.N. Rayan

Behaviour ◽  
1987 ◽  
Vol 102 (3-4) ◽  
pp. 239-263 ◽  
Author(s):  
Joseph K. Kovach

AbstractThe separate and interactive influences of genetically variable unconditional stimulus preference, age effects, and genetic canalization were studied in relation to perceptual imprinting in Japanese quail chicks (C. coturnix japonica). The chicks were drawn from populations subjected to 21 generations of bidirectional genetic selection for unconditional approach preference between blue and red stimuli. They were tested for age and stimulus effects in perceptual learning from synergistic and conflicting exposures to the genetically preferred and genetically unpreferred colours. Unselected quail chicks were tested as genetic controls, and the qualitative influences of exposures to colours were controlled by comparable exposures to white and other preference-wise neutral stimuli. The results indicate robust and developmentally stable gene effects in the quail's unconditional colour choices, developmentally persistent but episodically variable learning from exposures to colours of genetically variable preference values, and systematic genotype-environment interactions. Discussion focuses on the canalizing role of genetically variable unconditional stimulus preferences in the early developmental of behaviour.


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