有影响性取向的“同性恋基因”吗？

 zaidajiashehuijingjifazhanhenanrenhenvrenliangxingzhong，yueyou2%zhi10%derenbiaoshuyunantongzaochengguoxingshenghuo。zai20xinshidaidejuedabufenshijianli，shixingjingshenbingxuejiaganjue tongxinglianjiyin shizheileizhengzhuang，erduixingquxiangjinxingkeyanbeiganjueshizheilei“zhiyufangfa”。dangandao20xinshidai90shiqi，xinyanglingxiumenyouzhebenshendexiangfa，tamenchuansong：shuangxinglianshilaizijiyinyichuandexuanze，shizheileizuiguo。

同性恋交友

 quanweizhuanjiayezishizhizhongzaizhiwenzheiyiquntibeihoudedaodexingweibenzhi。guoquyixieshuangbaotaibaobaodekeyanfaxian，tongxingxingxingweikenengzaiwubishuizhunzhongshouyichuanjiyinyinsudeshanghai。danzheileikeyanyineryouyushejishuliangguoshao，qiemeiyouyunyongdangjinjiyinzufenxidefangfa，bingbushinenggouyanzhengqizhenduixing。

yiner，zheicixiangguan“tongxinglianjiyinquanjuxingquyu”dekeyanduizhanchekaileweimu!shifouyou“shuangxinglian”jiyinyichuan?

 jiyinyichuanzaixingquxiangzhongjubeileshiduoshaozuoyong，zishizhizhongshishengwuxuezhongxuanerweijuedenandian，daodiyounagejiyinyichuanrangbenrenbianweileshuangxinglian?bujiuqian，《science》qikanzazhidecixiangzuixindongtaikeyanyinernandianzuochuledebiaoshu：duilaiziyingguohemeiguojin50wanduomingbenrenjinxingdedequanjiyinzuguanlianfenxi(gwas)diaochafaxian，zhaobuzhefensanhuabuliangyingxiangquxiangde“tongxinglianjiyin”。

 bencikeyanshicixiangyoumeiguomashengligongxueyuanbroaddiaoyanshi、hafodaxuehejianqiaodaxuexiezuokaizhandezhongyiyaoxueherenleijiyinzuzuixinxiangmu。keyangongzuoyuanzuikaishiduilaiziyingguodeweishengwujunzhongjinrongqiyeshujukuchaxun(408995ren)hemeiguode23andmeshujukuchaxun(68527ren)jinxingshujufenxifenlei，jiangzhishaozaochengguoyicitongxingxingxingweiderenqunchengzuo“feiyixinglianzhe”，qitachengzuo“yixinglianzhe”。

同性恋交友

 suihou，tamenduizhizhong477,522ge“feiyixinglian”benrenjinxinglequanjiyinzuguanlianfenxi(gwas)。gaizhuanyexingkeyizaiquanjiyinzufanweineijiancechuyangbandedanhegansuanduotaixingweidian(snp)，yijuyuduizhaoshiyanjinxingbijiao，jiunengxunzhaosuoyoudezaochengjiyinbianyidedengweijiyinpinlv。

 zuanshi(zihongse)daibiaolaizinanxinghenvxinggouchengdefenxidequanjiyinzuzhongyaoshujuxinhao，bingqiesanbianxingdaibiaoquanjiyinzugengxianshujuxinhao，qishinvxing(wangshangmian，anlanse)huonanxing(xiangxia，lvse)feiteyi。

 keyanjieguofaxian，zaiguowaiweishengwujunzhongjinrongqiyehe23andmedeyangbanzhong，5gechangransetiweidianyutongxingxingxingweigengxianxiangguan。zhizhong2geyichuanjiyinbiaozhiyunannvxingshenghuoxiangguan，2geyichuanjiyinbiaozhidanduzhenduinanxing、1geyichuanjiyinbiaozhidanduzhenduinvxing。zheileijiyinzuodegenzongtishileyucixingjisudiaojieheweileiyouguandeweishengwujunzhongfangfadelianxi。

 keyangongzuoyuanbiaoshu，jishiruci，jiyinzuzhongdezhei5geweidianduitongxingxingxingweishanghaizhanbibule1%。tamenweilebaozhengkeyanjieguodezhunquexing，youyingyongbutongdefenxizhuanyexingfaxian，dangkaolvdaojiyinzuzhongxuduobiaoshiwudesuoyouxiweishanghaishi，yichuanjiyinyinsutongyangfuqishenghuodeshanghaijianghuizhanyou8%dao25%。zheiyeyiweizhe，muqianmohubuqingshuliangdeyichuanjiyinbiaozhijianghuizaigoujianxingquxiangdaodexingweizhongchongfenyunyongzheganaiganhendezuoyong。

 haosiglaadshouxizongcaizuixinxiangmuguanzeke stokeszai《weibao》decaifangzhongchanghuitanjideneiyang：gaixiangkeyanchujulehenduozhijiezhengjuquerenshuangxinglianshidajiachichuanzhuxingdeyibufen。lgbtqgongzuorenyuandedaodishisheijuebuzhenglun。

 tongxinglianjiyinyehaosi《call me by your name》zhongdeyijuhua：ruheguonideyishengshinideshi，keshishuji，shangtianciyudajiadexinliheshentizhiyouyici。