Duplications in Caenorhabditis elegans.
Duplications in Caenorhabditis elegans.
复制标题
秀丽隐杆线虫中的重复。
作者：
R. K. Herman;J. Madl;C. K. Kari
在X射线照射后，已经发现了13个染色体重复，它们都与它们的起源无关。10个是X染色体重复，其中6个是在3个常染色体连锁群上的半易位，4个是游离片段。五个半易位是纯合子可育的，两个是可识别的细胞学染色体卫星，这两个都显示出一些有丝分裂不稳定性。自由X重复显示出不同的丢失趋势。三个似乎不重叠的程度以前确定的自由X重复。第四个携带来自连锁群V的基因，以及X。连锁群II的一部分的三个重复被确定，并发现是免费的，在超倍体相当稳定。在男性中，一些自由复制倾向于与X染色体分离。新的X染色体图谱数据。
Thirteen chromosomal duplications, all unlinked to their linkage of origin, have been identified following X-irradiation. Ten are X-chromosome duplications, of which six are half-translocations on three autosomomal linkage groups and four are free fragments. Five of the half-translocations are homozygous fertile and two are recognizable cytologically as chromosome satellites, both of which show some mitotic instability. The free-X duplications show varying tendencies for loss. Three appear not to overlap in extent previously identified free-X duplications. The fourth carries genes from linkage group V, as well as X. Three duplications of a portion of linkage group II were identified and found to be free and quite stable in hyperploids. Some of the free duplications tend to disjoin from the X chromosome in males. New X-chromosome map data are presented.