What ploidy state characterizes the asexual species *Aspidoscelis neomexicanus*?

Answer

Allotetraploid

The species *Aspidoscelis neomexicanus* serves as a specific molecular example illustrating the genomic restructuring that often accompanies the shift to asexuality following hybridization. This species has been identified as an allotetraploid. An allotetraploid is an organism that possesses two full sets of chromosomes derived from two genetically distinct ancestral species. This condition, known as allopolyploidy, involves a complete genome duplication event which often follows the initial hybridization that established the asexual line. This doubling of the entire genetic complement is hypothesized to provide crucial genomic redundancy, offering a necessary buffer to stabilize the genome against the rapid, potentially disruptive evolutionary changes associated with adopting asexual reproduction.

What ploidy state characterizes the asexual species *Aspidoscelis neomexicanus*?
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