Fang J S, Jagiello G
Chromosoma. 1981;82(3):437-45. doi: 10.1007/BF00285768.
Pachytene chromomere maps of early and mid/late mouse spermatocytes have been prepared which permit exact identification of each bivalent. The average total number of chromomeres on the autosomal bivalents was 248 in the early cells and 184 in the mid/late. There was close correspondence between early and mid/late chromomeres in 122 locations. Comparisons of early pachytene chromomeres with published prometaphase dark G bands revealed 1.6 more chromomeres in the meiotic autosomal bivalents, with close correspondence of larger chromomeres and major mitotic bands. Fewer chromomeres were found in pachytene spermatocytes than had been seen in a previous study of pachytene oocytes. Comparisons of chromomeres of spermatocytes and oocytes revealed several differences.
已经制备了早期和中期/晚期小鼠精母细胞的粗线期染色粒图谱，这些图谱能够精确识别每一对二价体。常染色体二价体上染色粒的平均总数在早期细胞中为248个，在中期/晚期细胞中为184个。在122个位置上，早期和中期/晚期的染色粒之间存在密切对应关系。将早期粗线期染色粒与已发表的前中期暗G带进行比较，发现减数分裂常染色体二价体上的染色粒多1.6个，较大的染色粒与主要有丝分裂带密切对应。在粗线期精母细胞中发现的染色粒比之前对粗线期卵母细胞的研究中所见的要少。精母细胞和卵母细胞染色粒的比较揭示了一些差异。
