期刊
NEMATOLOGY
卷 19, 期 8, 页码 925-949出版社
BRILL ACADEMIC PUBLISHERS
DOI: 10.1163/15685411-00003098
关键词
D2-D3; dagger nematode; ITS; Longidoridae; molecular; morphometrics; morphospecies Group 5; new species; phylogeny; plant-parasitic nematode; taxonomy; Tilia tomentosa
类别
A population of Xiphinema dentatum, found in a new locality in Serbia, is briefly described and illustrated. Xiphinema paradentatum sp. n. is described and illustrated. It is a parthenogenetic species characterised by its medium to moderately long body (3.71-5.02 mm), open C-shaped when heat-relaxed, lip region frontally almost flattened, laterally rounded and separated from the rest of the body by a weak depression; a moderately long odontostyle (147-166 mu m), guide ring located at 137-153 mu m from anterior end; two equally developed genital tracts having a pseudo-Z-organ in uterus in the form of several irregular angular sclerotised bodies apophyses located in the vicinity of the pars dilatata uteri and devoid of spines; tail broadly and symmetrically rounded, and four juvenile developmental stages. Molecular characterisation using the ribosomal ITS and the D2-D3 expansion domains of the 28S rRNA gene was done and maximum likelihood analysis was used to reconstruct the phylogenetic relationships of X. dentatum and X. paradentatum sp. n. from Serbia with other longidorids.
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