男同性恋分子遗传学研究的进展

Research progress on molecular genetics of male homosexuality

性取向的形成受到环境因素和生物因素的共同影响。家系和双生子研究均表明，男同性恋受遗传因素的影响。分子遗传学研究通过全基因组扫描，已发现了一些与男同性恋形成有关的候选染色体区域，但相关基因或基因位点尚未被准确定位。本文对男同性恋分子遗传学的研究进展做一概述。

Sexual orientation is influenced by both environmental factors and biological factors. Family and twin studies have shown that genetic factors play an important role in the formation of male homosexuality. Genome-wide scan also revealed candidate chromosomal regions which may be associated with male homosexuality, but so far no clearly related genes have been found. This article reviews the progress of relevant studies and candidate genes which are related to male homosexuality.