The relationship between nucleolar organizer size and growth in Chironomus riparius larvae (Diptera:Chironomidae)

摘要: AbstractChironomid larvae possess giant polytene chromosomes. When genes on these chromosomes undergo transcription, they are visible as puffs. The nucleolar organizer region (NOR), an especially large puff, shrinks when a larva is at particular developmental stages or subjected to chemical stress. However, whether reduced NOR size indicative of growth unknown. Therefore, we conducted 2 experiments examine the relationship between and chironomid under controlled laboratory conditions. In 1st experiment, quantified effect ration quality larval size. 2nd, determined varied function recent growth, independently combined results demonstrated that prepupal development was positively correlated with chironomid’s most rate, its biomass. finding related validates use biomar...