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. 2013 May 7;8(5):e63738. doi: 10.1371/journal.pone.0063738

Figure 7. Possible mechanisms of genetic recombination that could give rise to chromosomal polymorphism in T. cruzi.

Figure 7

Panel A) Translocation mechanism: a DNA fragment (210 kb) from a heterologous chromosome (red) is translocated to another chromosome (blue) by homologous recombination, generating “homologous” chromosomes of different sizes. Panel B) Fusion and breakage mechanism: two homologous chromosomes of different sizes are fused, forming a dicentric chromosome which is then broken, generating two chromosomes of similar sizes but with different gene content.