Molecular Origin of Species

@article{Nei1998MolecularOO,
  title={Molecular Origin of Species},
  author={Masatoshi Nei and Jianzhi Zhang},
  journal={Science},
  year={1998},
  volume={282},
  pages={1428 - 1429}
}
The making of new species is a fundamental step in evolution, and the molecular basis of this process is just beginning to be worked out, say Nei and Zhang in their Perspective. They discuss two recent examples (one reported by Ting et al. in this issue) in which the concerted evolution of interacting molecules controls reproductive isolation, the first step in the speciation process. 

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References

SHOWING 1-7 OF 7 REFERENCES
Evolution of gamete recognition proteins.
TLDR
Although fertilization has been studied for more than a century, the cell surface proteins mediating the process are only now becoming known and diversity of structure may be a recurring theme in the evolution of fertilization proteins. Expand
Genetics and the Origin of Species
TLDR
This research attacked the mode confusion problem by exploring the role of mutation as a basis for racial and SPECIFIC differences in biodiversity. Expand
Concerted evolution in an egg receptor for a rapidly evolving abalone sperm protein.
TLDR
Concerted evolution in the egg receptor could explain the rapid, adaptive evolution in sperm lysin and may provide an underlying molecular mechanism that gives rise to species-specific fertilization. Expand
The Divergence of Species-Specific Abalone Sperm Lysins is Promoted by Positive Darwinian Selection.
TLDR
Analysis of the cDNA sequences shows that positive Darwinian selection must promote the divergence of lysin sequences, indicating that red, white, and flat lysins are more closely related to each other than to the lYSins of the other four species. Expand
Positive selection and sequence rearrangements generate extensive polymorphism in the gamete recognition protein bindin.
TLDR
These results show that polymorphism in mate recognition loci required for rapid evolution of sexual isolation can arise within natural populations. Expand
Models of evolution of reproductive isolation.
TLDR
Computer simulations by using Itô's stochastic differential equations have shown that in the model used the reproductive isolation mechanism evolves faster in small populations than in large populations when the mutation rate remains the same. Expand
Specific in vitro interaction between recombinant Strongylocentrotus purpuratus bindin and a recombinant 45A fragment of the putative bindin receptor.
TLDR
The interaction between recombinant Strongylocentrotus purpuratus sperm bindin and a recombinant fragment of the putative egg bindin receptor of the same species was measured in vitro, showing a specific affinity for one another. Expand