Aggressive behaviour: contributions from genes on the Y chromosome

2008 ◽  
pp. 20-41 ◽  
Author(s):  
Robin Lovell-Badge
Keyword(s):  
Y Chromosome ◽  
Aggressive Behaviour

scholarly journals Effects of Y-chromosome variants on the male behaviour of the mouse Mus musculus

1980 ◽  
Vol 35 (3) ◽  
pp. 261-268 ◽  
Author(s):  
A. D. Stewart ◽  
Aubrey Manning ◽  
Jennifer Batty
Keyword(s):  
Y Chromosome ◽  
Sexual Behaviour ◽  
Mus Musculus ◽  
Aggressive Behaviour ◽  
Testis Weight ◽  
Androgen Metabolism ◽  
Genetic Components

SUMMARYA study of crosses between CBA/FaCam and C57B1/6Fa mice revealed an effect of the origin of the Y-chromosome on testis weight and aggressive behaviour, but failed to reveal any effect on sexual behaviour and androgen metabolism. There is therefore no evidence that androgens mediate the Y-linked variation in aggressive behaviour and testis weight. On behavioural grounds, it is difficult to compare measures of sexual and aggressive behaviour, but it appears from these results that there are major genetic components on the Y-chromosome controlling the development of sexual and aggressive behaviour which are distinct.

The influence of burnout in aggressive behaviour among Portuguese police officers

2012 ◽  
Author(s):  
Cristina Queiros ◽  
Antonio Leitao da Silva ◽  
Isabel Teixeira
Keyword(s):  
Police Officers ◽  
Aggressive Behaviour

Y-Chromosome Variant May Raise Risk of Heart Disease

2010 ◽  
Vol 40 (15) ◽  
pp. 40
Author(s):  
BRUCE JANCIN
Keyword(s):  
Heart Disease ◽  
Y Chromosome ◽  
Chromosome Variant

Sex determination and Y chromosome constitutive heterochromatin

2019 ◽  
Vol 1 (1) ◽  
pp. 1-5
Author(s):  
Abyt Ibraimov
Keyword(s):  
Sex Determination ◽  
Y Chromosome ◽  
Constitutive Heterochromatin ◽  
Sex Differentiation ◽  
Secondary Sexual Characteristics ◽  
Biological Meaning ◽  
Heterochromatin Block ◽  
Sexual Characteristics ◽  
Open Question ◽  
Efficient Elimination

In many animals, including us, the genetic sex is determined at fertilization by sex chromosomes. Seemingly, the sex determination (SD) in human and animals is determined by the amount of constitutive heterochromatin on Y chromosome via cell thermoregulation. It is assumed the medulla and cortex tissue cells in the undifferentiated embryonic gonads (UEG) differ in vulnerability to the increase of the intracellular temperature. If the amount of the Y chromosome constitutive heterochromatin is enough for efficient elimination of heat difference between the nucleus and cytoplasm in rapidly growing UEG cells the medulla tissue survives. Otherwise it doomed to degeneration and a cortex tissue will remain in the UEG. Regardless of whether our assumption is true or not, it remains an open question why on Y chromosome there is a large constitutive heterochromatin block? What is its biological meaning? Does it relate to sex determination, sex differentiation and development of secondary sexual characteristics? If so, what is its mechanism: chemical or physical? There is no scientifically sound answer to these questions.

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