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Nematodes Tag

Bik HM, WK Thomas, DH Lunt and PJD Lambshead (2010) Low endemism, continued deep-shallow interchanges, and evidence for cosmopolitan distributions in free-living marine nematodes (order Enoplida). BMC Evolutionary Biology 2010, 10:389 doi:10.1186/1471-2148-10-389 (PDF) Background: Nematodes represent the most abundant benthic metazoa in one of the largest...

Lunt, D.H. (2008) Genetic tests of ancient asexuality in Root Knot Nematodes reveal recent hybrid origins. BMC Evolutionary Biology 2008, 8:194 doi:10.1186/1471-2148-8-194 (PDF) Abstract Background The existence of "ancient asexuals", taxa that have persisted for long periods of evolutionary history without sexual recombination, is both controversial and important...

Whipple, L. E., D. H. Lunt, and B. C. Hyman (1998) Mitochondrial DNA length variation in Meloidogyne incognita isolates of established genetic relationships: utility for nematode population studies. FUNDAMENTAL AND APPLIED NEMATOLOGY 21:265-271. (PDF) Six Meloidogyne incognita isolates with previously characterized genetic relationships were used to...

Lunt, D. H., and B. C. Hyman (1997) Nature 387:247-247. Animal mitochondrial DNA recombination
Genetic recombination is known to be a source of mitochondrial DNA (mtDNA) variability in plants, fungi and protists, but there continues to be a consensus (based on studies of somatic cell hybridization and DNA repair) that such processes do not operate on animal mtDNA. Contrary to this opinion we have now identified and characterized the end-products of recombination in the mitochondrial genome of the phytonematode Meloidogyne javanicaPDF PMID: 9153388

  Root Knot Nematodes of the genus Meloidogyne are some of the world's most important crop pathogens. The genus contains a wide range of reproductive modes, with repeated transitions between them. This raises interesting possibilities to investigate the genomic consequences of the loss of meiotic recombination. I...

Christopher Taylor at the excellent Catalogue of Organisms has a thought provoking post on the taxonomic diversity of described species. He has a picture of animal groups, plants and fungi scaled by number of described species. I like these sorts of pictures; they are great...

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