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Updated: Jun 24, 2026

High and Low Throughput Screens with Root-knot Nematodes Meloidogyne spp.
Published on: March 12, 2012
DNA Complexity of the Root-knot Nematode (Meloidogyne spp.) Genome
Abstract:
Cot curves derived from renaturation kinetics of sheared denatured DNA indicated that the genome of six populations representing the four most common root-knot nematode species (Meloidogyne incognita, M. arenaria, M. javanica, and M. hapla) is composed of 20% repetitive and 80% nonrepetitive sequences of DNA. Cot curves were almost identical, indicating that all populations had a haploid genome of approximately the same size. Calculations from an average Cot curve gave an estimate of 0.51 x 108 nucleotide base pairs for the haploid genome of the four Meloidogyne species. This genome is about 12-13 times larger than the genome of the E. coli strain used as a control.
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