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Plant Y chromosome degeneration is retarded by haploid purifying selection.

Current biology : CB - 13 Sept 2011

Chibalina Margarita V, Filatov Dmitry A

Abstract excerpt

Sex chromosomes evolved many times independently in many different organisms [1]. According to the currently accepted model, X and Y chromosomes evolve from a pair of autosomes via a series of inversions leading to stepwise expansion of a nonrecombining region on the Y chromosome (NRY) and the consequential degeneration of genes trapped in the NRY [2]. Our results suggest that plants represent an exception to...

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PMID: 21889890
DOI: 10.1016/j.cub.2011.07.045

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