Marchantia polymorpha

Tandemly repeated sequences

There are 1 pages with 6 entries

Name Description Protein homology Other info Source
There is a region about 4 Mb of low complexity repeats in males in the V chromosome. The U chromosome has a larger repeat region, in which rDNA repeats probably take part. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6128410/
There are specific heterochromatic tandem repeats in a quarter of the length of the V chromosome. These are organized in a mosaic-like structure of nested repeats, including various levels of repeats and subrepeats. https://www.karger.com/Article/Abstract/121075
Several chromosome-specific sequence elements of 70 to 400 nt are combined into larger arrangements, which in turn are assembled into extensive Y (V) chromosome-specific stretches. https://onlinelibrary.wiley.com/doi/full/10.1046/j.1365-313x.2000.00882.x
17S rDNA The U chromosome contains sequences of 17S rDNA https://link.springer.com/content/pdf/10.1023/A:1011676328165.pdf
5S rRNA gene (fragment rbf62) There is a fragment in the U chromosome (rbf62) which holds a 5S rRNA gene https://www.genetics.org/content/159/3/981
rRNA genes There are sequences of rDNA (5S, 17S, 5.8S and 26S) with more than 99% identity between the U chromosome an the autosomal rDNA repeat units, although the IGS (intergenic spacer) are considerably different. https://link.springer.com/content/pdf/10.1023/A:1025941206391.pdf

Sex-chrom database 2021