The sparrow with four sexes

@article{Arnold2016TheSW,
  title={The sparrow with four sexes},
  author={Carrie Arnold},
  journal={Nature},
  year={2016},
  volume={539},
  pages={482-484}
}
Elaina Tuttle spent her life trying to understand the bizarre chromosome evolution of a common bird — until tragedy struck. 
Negative-Assortative Mating in the White-Throated Sparrow
TLDR
A model to investigate the dynamics and equilibrium of white- Striped versus tan-striped crown in the white-throated sparrow demonstrates how evolutionary genetic models can be used to understand negative-assortative mating. Expand

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In a study of 35 white-throated sparrows five distinct karyotypes were observed. A chromosomal polymorphism is present which involves at least two pairs of macrochromosomes. This species isExpand
Alternative reproductive strategies in the white-throated sparrow: behavioral and genetic evidence
TLDR
Behavioral and genetic evidence suggest that the two morphs use alternative strategies and that reproductive trade-offs may serve to maintain a competitive equilibrium between the morphs. Expand
Comparative BAC-based mapping in the white-throated sparrow, a novel behavioral genomics model, using interspecies overgo hybridization
TLDR
Comparison mapping is used as a first step in characterizing the genome organization of a novel animal model, the white-throated sparrow, which occurs as white or tan morphs that exhibit alternative behaviors and physiology, and confirms the utility of interspecies hybridization for developing comparative maps in other non-model organisms. Expand
Divergence and Functional Degradation of a Sex Chromosome-like Supergene
TLDR
This work uses de novo whole-genome sequencing coupled with population- and phylogenomic data to show that alternate supergene alleles are highly divergent at over 1,000 genes and that these alleles originated prior to the split of Z. albicollis, and provides evidence that the "white" allele may be degrading, similar to neo-Y/W sex chromosomes. Expand
Science
Science today studies phenomena lasting less than 10−21 s and phenomena which occurred more than 13 billion years ago; science also studies phenomena occurring over distances greater than 1028 cm andExpand
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Elaina Tuttle dedicated her scientific career to studies of the white-throated sparrow. INDIANA STATE UNIV These birds are an amazing system
  • Elaina Tuttle dedicated her scientific career to studies of the white-throated sparrow. INDIANA STATE UNIV These birds are an amazing system