CELL-CYCLE STUDY UP TO THE TIME OF HATCHING IN THE EMBRYOS OF THE SEA-URCHIN, HEMICENTROTUS-PULCHERRIMUS
CELL-CYCLE STUDY UP TO THE TIME OF HATCHING IN THE EMBRYOS OF THE SEA-URCHIN, HEMICENTROTUS-PULCHERRIMUS
复制标题
DOI：
10.1111/j.1440-169x.1980.00589.x
复制
发表时间：
1980-01-01
影响因子：
2.5
通讯作者：
KATO, Y
中科院分区：
文献类型：
--
作者：
DAN, K;TANAKA, S;KATO, Y
对海胆胚胎10次分裂至孵化时的细胞周期进行了分析。在前5个分裂中，分裂同步性非常高。TGC = 55.4 min, TG1 = 0 min, TS = 0 min, TS = 12 min, TG2 = .+-。0 min, TM = 42 min。在其余5条解理中，TGC变长：第7条为70 min，第10条为246 min。G1和G2变得清晰可辨，并随着t变长。TM基本保持不变。G1、S、G2、M 4个室长在y轴上随TGC （x轴）的变化曲线可拟合为TG1 = 0.28TGC-19.7、TS = 0.609TGC-15.2、TG2 = 0.104TGC-4.72、TM = 0.007TGC+39.6 4个回归方程。
Cell cycles were analyzed in 10 divisions up to the time of hatching in the embryos of the sea urchin, H. pulcherrimus. In the 1st 5 cleavages, division synchrony is very high. On the average, TGC = 55.4 min, TG1 = 0 min, TS = 0 min, TS = 12 min, TG2 = .+-. 0 min, TM = 42 min. In the remaining 5 cleavages, TGC becomes longer: 70 min for the 7th to 246 min for the 10th cleavage. G1 and G2 become definitely recognizable and become longer along with Ts. TM stays more or less constant. Plots of the changing lengths of the 4 compartments (G1, S, G2, M) on the Y-axis against TGC (X-axis) can be fitted to the following 4 regression equations: TG1 = 0.28TGC-19.7, TS = 0.609TGC-15.2, TG2 = 0.104TGC-4.72 and TM = 0.007TGC+39.6.