Mity model: Tetranychus urticae, a candidate for chelicerate model organism

Miodrag Grbic, Abderrahman Khila, Kwang Zin Lee, Anica Bjelica, Vojislava Grbic, Jay Whistlecraft, Lou Verdon, Maria Navajas, Lisa Nagy

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


Chelicerates (scorpions, horseshoe crabs, spiders, mites and ticks) are the second largest group of arthropods and are of immense importance for fundamental and applied science. They occupy a basal phylogenetic position within the phylum Arthropoda, and are of crucial significance for understanding the evolution of various arthropod lineages. Chelicerates are vectors of human diseases, such as ticks, and major agricultural pests, such as spider mites, thus this group is also of importance for both medicine and agriculture. The developmental genetics of chelicerates is poorly understood and a challenge for the future progress for many aspects of chelicerate biology is the development of a model organism for this group. Toward this end, we are developing a chelicerate genetic model: the two-spotted spider mite Tetranychus urticae. T. urticae has the smallest genome of any arthropod determined so far (75 Mbp, 60% of the size of the Drosophila genome), undergoes rapid development and is easy to maintain in the laboratory. These features make T. urticae a promising reference organism for the economically important, poorly studied and species-rich chelicerate lineage.

Original languageEnglish (US)
Pages (from-to)489-496
Number of pages8
Issue number5
StatePublished - May 2007

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)


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