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Highly distinct chromosomal structures in cowpea (Vigna unguiculata), as revealed by molecular cytogenetic analysis
Springer Science and Business Media LLC - Tập 24 - Trang 197-216 - 2016
Cowpea (Vigna unguiculata (L.) Walp) is an important legume, particularly in developing countries. However, little is known about its genome or chromosome structure. We used molecular cytogenetics to characterize the structure of pachytene chromosomes to advance our knowledge of chromosome and genome organization of cowpea. Our data showed that cowpea has highly distinct chromosomal structures tha......
Nature of B chromosomes in the harvest mouse Reithrodontomys megalotis by fluorescence in situ hybridization (FISH)
Springer Science and Business Media LLC - Tập 5 - Trang 475-479 - 1997
Using fluorescence in situ hybridization, we examined the characteristics of two types of B chromosomes in harvest mice of the genus Reithrodontomys. B chromosomes were interrogated with rDNA, telomeric repeat, LINE element and centromeric heterochromatin probes. The two types of B chromosomes share the following features: (a) telomeres present on the ends of both arms; (b) hybridization to LINE p......
Sister Chromatid Differentiation With Biotin-dUTP
Springer Science and Business Media LLC - Tập 7 - Trang 185-189 - 1999
The method of choice to differentiate sister chromatids is to incorporate BrdU in replicating DNA. The disadvantage of BrdU is that its spontaneous or induced radicalization may itself lead to sister chromatid exchanges. Biotin-labelled dUTP is a widely used thymidine analogon for labelling isolated DNA. Its chemical structure suggests that, in contrast to BrdU, it does not give rise to radical fo......
18th International Colloquium on Animal Cytogenetics and Gene Mapping (18th ICACGM)
Springer Science and Business Media LLC - Tập 16 - Trang 1027-1071 - 2008
An essential role for the Ino80 chromatin remodeling complex in regulation of gene expression during cellular quiescence
Springer Science and Business Media LLC - Tập 31 - Trang 1-19 - 2023
Cellular quiescence is an important physiological state both in unicellular and multicellular eukaryotes. Quiescent cells are halted for proliferation and stop the cell cycle at the G0 stage. Using fission yeast as a model organism, we have previously found that several subunits of a conserved chromatin remodeling complex, Ino80C (INOsitol requiring nucleosome remodeling factor), are required for ......
Sex chromosome evolution in moths and butterflies
Springer Science and Business Media LLC - Tập 20 - Trang 83-94 - 2011
Lepidoptera, i.e. moths and butterflies, have a female heterogametic sex chromosome system, with most females having a WZ constitution while males are ZZ. Besides this predominant WZ/ZZ system, Z/ZZ, WZ1Z2/Z1Z1Z2Z2 and W1W2Z/ZZ systems also occur. Sex is determined by an unknown W-linked gene or genes in Bombyx mori, but by dosage-dependent and equally unknown Z-linked genes in all Z/ZZ species. T......
Human activity-regulated cytoskeleton-associated gene (ARC) maps to chromosome 8q24
Springer Science and Business Media LLC - Tập 8 - Trang 655-655 - 2000
Male sterile 28 encodes an ARGONAUTE family protein essential for male fertility in maize
Springer Science and Business Media LLC - Tập 29 Số 2 - Trang 189-201 - 2021
The prevalence of a YY synaptonemal complex over XY synapsis in an XYY man with exclusive XYY spermatocytes
Springer Science and Business Media LLC - Tập 5 - Trang 467-474 - 1997
An infertile XYY man was studied by synaptonemal complex analysis of microspread spermatocytes and by quantitation of germ cells in semithin sections. All the 74 spermatocytes micrographed have an XYY constitution, and the biopsy shows a homogeneous arrest of spermatogenesis at the spermatocyte/young spermatid stages. The overwhelming majority (86%) of spermatocytes showed a Y—Y bivalent plus a un......
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