Anderson L K, Stack S M, Sherman J D
Department of Biology, Colorado State University, Fort Collins 80523.
Chromosoma. 1988;96(4):295-305. doi: 10.1007/BF00286917.
Four different inversion heterozygotes of maize were examined for the occurrence of synaptic adjustment. Three substages of pachytene were identified in synaptonemal complex (SC) spreads using side-by-side comparisons of chromosome squashes with two-dimensional spreads of SCs. In SC spreads, inversion loop frequency did not change substantially from early through late pachytene for any of the four inversion heterozygotes examined. In addition, the position and size of the inversion loops remained essentially constant throughout pachytene. These results indicate that synaptic adjustment of inversion loops does not occur during pachytene in Zea mays.
对玉米的四种不同倒位杂合体进行了突触调整发生情况的检测。利用染色体压片与联会复合体（SC）二维铺展的并排比较，在SC铺展中鉴定出粗线期的三个亚阶段。在SC铺展中，对于所检测的四个倒位杂合体中的任何一个，从粗线期早期到晚期，倒位环频率都没有显著变化。此外，在整个粗线期，倒位环的位置和大小基本保持不变。这些结果表明，在玉米的粗线期不会发生倒位环的突触调整。
