On the formation of a homogeneous zygotic population in Chlamydomonas reinhardtii☆
[摘要] Upontransferintoaliquidmediumdevoidofanitrogensource,vegetativecellsofChlamydomonasreinhardtiiundergoagametogenicdifferenciationprocesstogiverisetosexuallyactivegametesthatarecapableofmatingwithoppositematingtypegametes.Strikingdifferenceshavebeendemonstratedinthematingefficiency(0to100%)ofgametesinducedatdifferentvegetativegrowthstagesinthelight-darksynchronizedculture.Thisdifferenceinmatingefficiencyofgametesisindependentofmating-typebutdirectlyrelatedtothegrowthstageofthesynchronizedvegetativeculturesatthetimeofgametogenicinduction.Incontrasttothesynchronizedculture,thematingefficiencyofgametesinthecontinuouslight,nonsynchronizedvegetativecultureisindependentofthegrowthstageatthetimeofgametogenicinduction.Thematingbehaviorofgametesappearstoberatherunstablesincethematingefficiencyofagivenclonecanbealteredconsiderablyduringroutinemaintenanceoftheculture.Notalltheprogenyofaparticularstraininherittheidenticalmatingefficiencyoftheirparents.Thestabilityofthematingbehaviorandthetransmittanceofthematingbehaviortothevegetativeprogenyhavebeenfoundtovaryamongdifferentclones.Thehighfrequencyatwhichthematingbehavioralterssuggeststhatthematingbehaviorisarathercomplexexpressionofanumberofdifferentfactors.
[发布日期] [发布机构]
[效力级别] [学科分类] 生物科学（综合）
[关键词] [时效性]
