Heritable variation of mRNA decay rates in yeast

Gene expression levels are determined by the balance between rates of mRNA transcription and decay, and genetic variation in either of these processes can result in heritable differences in transcript abundance基因表达水平由信使RNA（mRNA）转录与降解的速率平衡所决定，上述任一过程中的遗传变异，均可导致转录本丰度出现可遗传差异。