典型文献
Strong variation in frequencies of male and female determiners between neighboring housefly populations
文献摘要：
Sex-determination mechanisms evolve rapidly and vary between species.Oc-casionally,polymorphic systems are found,like in the housefly.Studying the dynamics and stability of such systems can provide a better understanding of the evolution of sex-determination systems.In the housefly,dominant male-determining loci(M)can lie not only on the Y chromosome(MY),but also on autosomes(MA)or the X chromosome(MX).M enforces male development by inhibiting the female-determining gene transformer(tra).A mutant tra allele,traD,is insensitive to M and is a dominant female determiner.MY prevails at high latitudes and polymorphic M loci together with traD at low latitudes.To get more insight into the stability and frequencies of these sex determiners with mu-tually exclusive dominance,we investigated 5 regional Spanish populations.We found strong variation among populations.Two populations with hemizygous MⅢ were found,2 contained homozygous MX with additional hemizygous MⅠ and MⅡ in 1 population.One population contained homozygous and hemizygous MX with additionally hemizygous MⅡ.All females in populations with homozygous M,had traD,whereas no traD was found in populations without homozygous M.Our results indicate locally stable systems may ei-ther harbor a single hemizygous M and no traD,corresponding to a male heterogametic system,or homozygous and/or multiple M and heterozygous traD,reminiscent of a fe-male heterogametic system.They support that M loci can accumulate in the presence of a dominant female determiner.Limited migration between populations may contribute to the stability of these systems.
文献关键词：
中图分类号：
作者姓名：
Xuan Li;Fangfei Lin;Louis van de Zande;Leo W.Beukeboom
作者机构：
Groningen Institute for Evolutionary Life Sciences,Faculty of Science and Engineering,University of Groningen,Groningen,the Nether-lands
文献出处：
引用格式：
[1]Xuan Li;Fangfei Lin;Louis van de Zande;Leo W.Beukeboom-.Strong variation in frequencies of male and female determiners between neighboring housefly populations)[J].中国昆虫科学（英文版）,2022(05):1470-1482
A类：
determiners,housefly,casionally,autosomes,traD,determiner,hemizygous,heterogametic
B类：
Strong,variation,frequencies,between,neighboring,populations,Sex,determination,mechanisms,evolve,rapidly,vary,species,Oc,polymorphic,systems,are,found,like,Studying,dynamics,stability,such,can,provide,better,understanding,evolution,sex,In,dominant,determining,loci,lie,not,only,chromosome,MY,also,MA,MX,enforces,development,by,inhibiting,gene,transformer,mutant,allele,insensitive,prevails,high,latitudes,together,low,To,more,insight,into,these,tually,exclusive,dominance,investigated,regional,Spanish,We,strong,among,Two,were,contained,homozygous,One,additionally,All,females,had,whereas,was,without,Our,results,indicate,locally,stable,may,harbor,single,corresponding,multiple,heterozygous,reminiscent,They,support,that,accumulate,presence,Limited,migration,contribute
AB值：
0.424964
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