Duplication, divergence and persistence in the Phytochrome photoreceptor gene family of cottons (Gossypium spp.)
2010

Study of Phytochrome Genes in Cotton

publication Evidence: moderate

Author Information

Author(s): Abdurakhmonov Ibrokhim Y, Buriev Zabardast T, Logan-Young Carla Jo, Abdukarimov Abdusattor, Pepper Alan E

Primary Institution: Center of Genomic Technologies, Academy of Sciences of Uzbekistan

Hypothesis

What is the composition and evolution of the phytochrome gene family in cotton species?

Conclusion

The study provides a preliminary inventory of phytochrome genes in cotton, suggesting they evolve independently under strong purifying selection.

Supporting Evidence

  • Phytochromes regulate important traits in cotton, such as fiber development and flowering.
  • Two paralogous PHYA genes were identified in diploid cottons.
  • Allotetraploid genomes retained complete gene complements from diploid ancestors.

Takeaway

This study looks at special genes in cotton that help the plant grow and develop by sensing light. It finds that these genes have changed over time but still work well.

Methodology

The study used PCR to amplify genomic sequence tags for phytochrome genes from various cotton species.

Potential Biases

Potential amplification bias favoring certain phytochrome genes.

Limitations

The results are provisional and based on PCR amplification, which may introduce biases.

Digital Object Identifier (DOI)

10.1186/1471-2229-10-119

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