Stelzer Claus-Peter
Hydrobiologia. 2011 Mar;662(1):77-82. doi: 10.1007/s10750-010-0487-1. Epub 2010 Oct 3.
This study provides the first analysis of genome size diversity in Monogonont rotifers. Measurements were made using flow cytometry, with and chicken erythrocytes as internal standards. Nuclear DNA content ("2C"- assuming diploid genomes) in eight different species of four different genera ranged almost fourfold, from 0.12 to 0.46 pg. A comparison with previously published values for Bdelloid rotifers suggested that the genomes of Monogononts are significantly smaller than those of Bdelloids. When compared to other Metazoans, Monogonont rotifers seem to have relatively small genomes. For instance, the C-values of the two species with the smallest genomes, and , were only 0.06 and 0.085 pg, respectively. Various explanations for genome size diversity within Monogononta are discussed.
本研究首次分析了单巢轮虫的基因组大小多样性。使用流式细胞仪进行测量，以鲑鱼精子DNA和鸡红细胞作为内标。四个不同属的八个不同物种的核DNA含量（“2C”——假设为二倍体基因组）范围几乎达四倍，从0.12到0.46皮克。与先前发表的蛭形轮虫数值相比，表明单巢轮虫的基因组明显小于蛭形轮虫的基因组。与其他后生动物相比，单巢轮虫似乎具有相对较小的基因组。例如，基因组最小的两个物种，即褶皱臂尾轮虫和壶状臂尾轮虫的C值分别仅为0.06和0.085皮克。文中讨论了单巢目内基因组大小多样性的各种解释。
