Nematodes from galls on Myrtaceae. III. Fergusobia from flower bud and stigma galls on Eucalyptus, with descriptions of four new species
Date
2012
Authors
Davies, K.
Giblin-Davis, R.
Ye, W.
Taylor, G.
Thomas, W.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Zootaxa, 2012; 2012(3532):1-36
Statement of Responsibility
Kerrie Davies, Robin Giblin-Davis, Weimin Ye, Gary Taylor and Kelley Thomas
Conference Name
Abstract
Four new species of Fergusobia from flower bud galls and a stigma gall on Eucalyptus spp. in Australia are described. Fer-gusobia eugenioidae Davies n. sp. is characterised by having an arcuate, open C or C-shaped parthenogenetic female with a conoid tail, an arcuate to open C-shaped infective female with a hooked tail region and a broadly rounded tail tip, and arcuate or open C-shaped males with angular spicules and short bursa. Fergusobia fasciculosae Davies n. sp. is character-ised by the combination of an arcuate parthenogenetic female with a short, broadly conoid tail, an open C-shaped infective female with a hemispherical tail tip, and J-shaped males with angular spicules and short peloderan bursa. This is the first Fergusobia/Fergusonina association to be described from flower stigma galls. Fergusobia juliae Davies n. sp. is character-ised by the combination of an arcuate to C-shaped parthenogenetic female with a short, broadly conoid tail, a J-shaped in-fective female with a hooked tail region, a cuticular plate around the vulva, and a broadly rounded tail tip, and J-shaped males with angular spicules and short peloderan bursa. Fergusobia morrisae Davies n. sp. has a C-shaped parthenogenetic female with a narrowly conoid tail, an arcuate or J-shaped infective female with most curvature behind the vulva and a short tail with an almost hemispherical tip, and arcuate or J-shaped males with strongly sclerotised, angular spicules and a long peloderan bursa. Other known similar forms of Fergusobia/Fergusonina flower bud galls from Eucalyptus spp. are outlined and the larval shield morphology of their associated mutualistic fly species is discussed where known. An inventory of all known Fergusobia/Fergusonina associations from flower bud galls from Eucalyptus spp. is presented. Molecular analysis of Fergusobia nematodes was inferred from DNA sequencing of 28S rDNA D2/D3 domains and a portion of mitochondrial DNA cytochrome oxidase subunit I (mtCOI). Possible evolutionary relationships are discussed.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright © 2012 Magnolia Press