Sequence analyses of herpesviral enzymes suggest an ancient origin for human sexual behavior.
Sequence analyses of herpesviral enzymes suggest an ancient origin for human sexual behavior.
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疱疹病毒酶的序列分析表明人类性行为的古老起源。
DOI:
10.1073/pnas.85.8.2658
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发表时间:
1988
影响因子:
11.1
通讯作者:
Nevins,R
中科院分区:
文献类型:
--
作者:
Gentry,GA;Lowe,M;Alford,G;Nevins,R
Comparison of the amino acid sequences of the deoxythymidine kinases of herpes simplex (HSV) and of marmoset herpes viruses (MHV) suggests a divergence time of 8 to 10 million years ago for HSV-1 and -2. Like MHV, HSV-1 and -2 cause local infections in their natural hosts, and direct contact between two individuals during the brief period of infectivity is needed for transmission. Because B virus, a nearer relative of HSV, depends on both oral and genital routes of transmission, we postulate that ancestral HSV (aHSV) was similar, and that for HSV-1 and -2 to diverge, genital and oral sites had to become microbiologically somewhat isolated from each other, while oral--oral and genital--genital contact had to be facilitated to maintain both aHSV strains. We propose that acquisition of continual sexual attractiveness by the ancestral human female and the adoption of close face-to-face mating, two hallmarks of human sexual behavior, provided the conditions for the divergence.