ISSN:
1615-6102
Keywords:
Chromosome fragments
;
Holokinetic chromosomes
;
Karyomeres
;
Nucleolar material
;
Ultrastructure
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary Chromosomes and nucleoli in the karyomeres of cleavage eggs of the arrhenotokous spidermiteTetranychus urticae Koch were treated with a silver-staining procedure for nucleolar material to establish the number of nucleoli and of the chromosomes that produce them. Each of the three holokinetic chromosomes of the haploid chromosome complement produces nucleolar material. This is confirmed by observations on the ultrastructure of karyomeres in serial sections of interphase cleavage divisions. These findings are thought to be in agreement with facts from previous radiation research and may help to explain the fate of induced fragments in holokinetic chromosomes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01283184
