intraspecific variation meaning in Chinese

种内变异

As analyzed , ( 1 ) the rapd technique is highly sensitive to investigating genetic diversity in t . lepturus and e . muticus . t . lepturus exhibits lower polymorphism and genetic diversity than e . muticus ; ( 2 ) according to the analysis of the partial mitochondrial 16s rrna gene sequences , a very low intraspecific variation and considerably high divergence among species were found , which reveals a dual nature of conservatism and variability in mitochondrial 16s rrna gene ; ( 3 ) five primers generate the species - speeific rapd sites and these sites can be served as the molecular markers for species identification and ( 4 ) it can be proved at dna variation level that t . lepturus and e . muticus are of two species respectively pertainiag to different genera , which supported the nelson taxonomic conclusion
分析结果表明: ( 1 ) rapd技术研究黄海带鱼和小带鱼的遗传多样性具有较高的灵敏度和检出率，带鱼的多态比例和遗传多态度均较小带鱼的低; ( 2 )线粒体165出凶a基因序列在分析两物种遗传变异时表现出保守和变异的双重特性，种内变异极小而种间较大: ( 3 ) 5个随机引物扩增出种特异的ra卫d带，可作为种间分子鉴定标记; ( 4 )研究证实带鱼和小带鱼是不同属的两个种，从而在分子水平上支持了nelson分类系统的观点。