Morphological, molecular, and differential-host characterization of Meloidogyne floridensis n. sp (Nematoda : Meloidogynidae), a root-knot nematode parasitizing peach in Florida

Z.A. Handoo, A.P. Nyczepir, D. Esmenjaud, J.G. van Beek, P. Castagnone-Sereno, L.K. Carta, A.M. Skantar, J.A. Higgins

    Research output: Contribution to journalArticleAcademicpeer-review

    53 Citations (Scopus)

    Abstract

    A root-knot nematode, Meloidogyne floridensis n. sp., is described and illustrated from peach originally collected from Gainesville, Florida. This new species resembles M. incognita, M. christiei, M. graminicola, and M. hispanica, but with LM and SEM observations it differs from these species either by the body length, shape of head, tail and tail terminus of second-stage juveniles, body length and shape of spicules in males, and its distinctive female perineal pattern. This pattern has a high to narrowly rounded arch with coarsely broken and network-like striae in and around anal area, faint lateral lines interrupting transverse striae, a sunken vulva and anus, and large distinct phasmids. Molecular data from ribosomal IGS illustrate that M. floridensis n. sp. is different from the mitotic species M. arenaria, M. incognita, and M. javanica. Data from RAPDs confirm it and suggest that this new species lies in an intermediate phylogenetic position between the previous species and the meiotic species M. hapla, M. fallax, and M. chitwoodi. Differential host tests based on annual crops and on Prunus accessions are reported.
    Original languageEnglish
    Pages (from-to)20-35
    JournalJournal of Nematology
    Volume36
    Issue number1
    Publication statusPublished - 2004

    Keywords

    • myrobalan plum
    • enzyme phenotypes
    • perineal patterns
    • prunus-cerasifera
    • resistance
    • heteroderidae
    • rootstock
    • identification
    • polymorphism
    • javanica
    • descriptions
    • host range
    • hosts
    • morphology
    • morphotaxonomy
    • new species
    • parthenogenesis
    • peaches
    • plant pests
    • Meloidogyne
    • Meloidogyne arenaria
    • Meloidogyne chitwoodi
    • Meloidogyne fallax
    • Meloidogyne floridensis
    • Meloidogyne graminicola
    • Meloidogyne hapla
    • Meloidogyne incognita
    • Meloidogyne javanica
    • Prunus persica
    • Florida
    • Meloidogynidae
    • invertebrates
    • animals
    • eukaryotes
    • Prunus
    • Rosaceae
    • Rosales
    • dicotyledons
    • angiosperms
    • Spermatophyta
    • plants
    • Gulf States of USA
    • Southern States of USA
    • APEC countries
    • Developed Countries
    • North America
    • America
    • OECD Countries
    • South Atlantic States of USA
    • Southeastern States of USA
    • animal anatomy
    • nucleotide sequences
    • plant parasitic nematodes
    • nematoda
    • host parasite relationships
    • random amplified polymorphic DNA
    • taxonomy
    • USA

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