Morphological and cytological features of gene activity in an amphibian hybrid system☆
[摘要] ResultsobtainedfromtransfersofdiploidblastulanucleifromRanapalustrisintoenucleatedeggsofRanapipiensconfirmedearlierpreliminarystudies.Approximatelyone-fourthofthesenucleocytoplasmichybridsdieduringgastrulationandone-halfarearrestedduringneurulationafterdisplayingabnormallywideneuralfolds.Theremainingfourthformextremelylargeheadsanddevelopedtoearlypostneurulastages.Thiscontrastsstrikinglywithnucleocytoplasmichybridsofthereciprocalcombination(pipiensnucleiinpalustriscytoplasm),themajorityofwhichsurvivetolatepostneurulastagesanddevelopverysmallheads.Karyotypeanalysisoftypicalnucleocytoplasmichybridsrevealedthattheirdeviationfromthenormalpatternofdevelopmentisnotcausedbycytologicallydetectablechangesinchromosomeconstitution.
[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]
