Molecular rDNA phylogeny of Telotylenchidae Siddiqi, 1960 and evaluation of tail termini.

ABSTRACT: Three stunt nematode species, Tylenchorhynchus leviterminalis, T. dubius and T. claytoni were characterized with segments of small subunit 18S and large subunit 28S rDNA sequence and placed in molecular phylogenetic context with other polyphyletic taxa of Telotylenchidae. Based upon comparably sized phylogenetic breadth of outgroups and ingroups, the 28S rDNA contained three times the number of phylogenetically informative alignment characters relative to the alignment total compared to the larger 18S dataset even though there were fewer than half the number of taxa represented. Tail shapes and hyaline termini were characterized for taxa within these subfamily trees, and variability discussed for some related species. In 18S trees, similar terminal tail thickness was found in a well-suppor

SUBMITTER: Carta LK 

PROVIDER: S-EPMC3380519 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature