Думаю, изучалось. Вряд ли я один такой умный - я же даже не биолог))
Пока следующее удалось найти http://www.ncbi.nlm.nih.gov/pubmed/20962020 "A normal uncomplicated pregnancy was characterized by balanced, biallelic expression of CGB5 and CGB8. However, in three (two recurrent miscarriage and one early elective termination of uncomplicated pregnancy) of nine genetically informative cases of CGB5, monoallelic expression of maternal alleles and hemimethylated gene promoters were identified."
If a child were to die at 7 years, it were better that an infant die at 7 months; if an infant were to die at 7 months, it were better that a babe die at 7 days; and if a babe were to die at 7 days post partum, it were better still that an embryo die at 7 days post conception. It takes 1 death to eliminate 1 copy of a deleterious dominant allele (or 2 copies of a deleterious recessive allele), and the death will have less effect on parental fitness the earlier it occurs. Reproductive compensation for early deaths thus favors the evolution of screening processes, operating before major commitment of resources, that convert small differences of expected fitness into lethal differences (17-19). Early embryos are easily replaced. Therefore, mothers are expected to be “fastidious” about which embryos implant, and to abandon embryos much more readily than they would abandon a child ... The second is parent-offspring conflict: embryos have less stringent criteria for continuation of pregnancy than mothers (19).
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timeasmymeasure
no subject
Date: 2014-03-01 10:59 am (UTC)Пока следующее удалось найти
http://www.ncbi.nlm.nih.gov/pubmed/20962020
"A normal uncomplicated pregnancy was characterized by balanced, biallelic expression of CGB5 and CGB8. However, in three (two recurrent miscarriage and one early elective termination of uncomplicated pregnancy) of nine genetically informative cases of CGB5, monoallelic expression of maternal alleles and hemimethylated gene promoters were identified."
и
http://www.pnas.org/content/early/2009/07/31/0904111106.full.pdf+html
If a child were to die at 7 years, it were better that an infant die at 7 months; if an infant were to die at 7 months, it were better that a babe die at 7 days; and if a babe were to die at 7 days post partum, it were better still that an embryo die at 7 days post conception. It takes 1 death to eliminate 1 copy of a deleterious dominant allele (or 2 copies of a deleterious recessive allele), and the death will have less effect on parental fitness the earlier it occurs. Reproductive compensation for early deaths thus favors the evolution of screening processes, operating before major commitment of resources, that convert small differences of expected fitness into lethal differences (17-19).
Early embryos are easily replaced. Therefore, mothers are expected to be “fastidious” about which embryos implant, and to abandon embryos much more readily than they would abandon a child
...
The second is parent-offspring conflict: embryos have less stringent criteria for continuation of pregnancy than mothers (19).