摘要
利用鉴别性的同工酶位点从印度恒河水系的支流Banganga中检测到了蓝黑鲮(Labeo calbasu)与南亚黑鲮(Labeorohita)的一个杂交个体。线粒体DNA的单倍型模式进一步确认这个杂交个体的母本是河蓝黑鲮。
Natural hybridization in freshwater fishes at intergeneric and interspecific levels is more common than in other groups of vertebrates(Hubbs,1955).Among fishes,Cyprinids are more prone to such hybridization.Detection of natural hybrids in fishes is often complicated and spot identification during vigorous sampling is quite difficult,as they may closely resemble any one of their parents.Species-specific molecular markers provide precise evidence in detecting hybrids between different species.A single diagnostic locus is adequate to detect an F_1 hybrid,however,5-6 loci can provide information on back crossed/post F_1 hybrids(Campton and Utter,1985).Mitochondrial DNA is predominantly inherited maternally and reveals the immediate maternal parent.Diagnostic allozyme loci coupled with mtDNA profiles can provide effective molecular tools for the detection of hybrids(Avis and Sunders,1984;Agnese et al.,1997,Strussmann et al.,1997).
出处
《动物学报》
SCIE
CAS
CSCD
北大核心
2007年第4期773-776,共4页
ACTA ZOOLOGICA SINICA
