Advances in Evolutionary Biology – Repetitive series and Intercourse Chromosome Evolution in Vertebrates

Advances in Evolutionary Biology – Repetitive series and Intercourse Chromosome Evolution in Vertebrates

1. Introduction

Two major kinds of intercourse chromosome systems exist in vertebrates, XX female/XY male (e.g., individual and salmon) and ZZ male/ZW female ( wild wild wild birds and snakes). exactly exactly How these functionally essential chromosomes evolve happens to be a subject for debate for longer than a hundred years, considering that the breakthrough regarding the sex that is first within the belated 1800s 1–3. Regardless of the fascination with this area, problems in sequencing highly repeated Y and W chromosomes have actually hampered progress towards gaining a fuller understanding regarding the mechanisms tangled up in their evolution. Leer más