1 Karyotype of 400 bands

Organize chr. in rows using column OTU. (Adler, 1994)

chrName group shortArmSize longArmSize
1 A 5.600 5.890
2 A 4.245 6.715
3 A 4.220 4.720
4 B 2.240 6.165
5 B 2.110 5.920
6 C 2.880 4.835

Add OTU info. to data.frame of marks’ position

chrName markName chrRegion markDistCen markSize
2 1 chr1p36.3 p 5.290 0.310
3 1 chr1p36.2 p 5.100 0.190
4 1 chr1p36.1 p 4.680 0.420
5 1 chr1p35 p 4.435 0.245
6 1 chr1p34.3 p 4.270 0.165
7 1 chr1p34.2 p 4.110 0.160

This is the data.frame of mark characteristics

markName markColor style
2 chr1p36.3 white square
3 chr1p36.2 black square
4 chr1p36.1 white square
5 chr1p35 black square
6 chr1p34.3 white square
7 chr1p34.2 black square

3 Robertsonian Translocations

This procedure transforms the data of long arms of the chromosomes 13 and 21 from data.frames of chr. and marks in a derivative (Robertson, 1916).

4 Function robert

That can be included in a function. We can do any Robertsonian translocation using:

chrName markName chrRegion markDistCen markSize OTU
613 t(13;14)(q10:q10) chr14q11.1 p 0.000 0.125 otu3
713 t(13;14)(q10:q10) chr14q11.2 p 0.125 0.330 otu3
813 t(13;14)(q10:q10) chr14q12 p 0.455 0.335 otu3
913 t(13;14)(q10:q10) chr14q13 p 0.790 0.305 otu3
1013 t(13;14)(q10:q10) chr14q21 p 1.095 0.600 otu3
1113 t(13;14)(q10:q10) chr14q22 p 1.695 0.330 otu3

References

Robertson WRB. 1916. Chromosome studies. I. Taxonomic relationships shown in the chromosomes of tettigidae and acrididae: V-shaped chromosomes and their significance in acrididae, locustidae, and gryllidae: Chromosomes and variation Journal of Morphology, 27(2): 179–331. https://onlinelibrary.wiley.com/doi/abs/10.1002/jmor.1050270202