chromosome alterations leading to speciation T. 25 final exam.txt

• Loss of chrom in parasitic roundworm Ascaris Meglocephala
• lead to smallest diploid genome (2n=2)

Complete genome doubling lead to LARGEST known # of mammalian chrom in Argentine red viscacha rat, Tympanoctonys barrerae (2n=102)

several small populations of Australian grasshopper Keyacris scurra

fission & fusion events separated chinese muntjac deer Muntiacus reevesi (2n=46) from the Indian Muntiacus muntjak (2n = 6 or 7)