TY - JOUR AU - Sultana, Tahera AU - Kim, Jiyeon AU - Lee, Sang-Hwa AU - Han, Hyerim AU - Kim, Sanghee AU - Min, Gi-Sik AU - Nadler, Steven A. AU - Park, Joong-Ki PY - 2013 DA - 2013/01/18 TI - Comparative analysis of complete mitochondrial genome sequences confirms independent origins of plant-parasitic nematodes JO - BMC Evolutionary Biology SP - 12 VL - 13 IS - 1 AB - The nematode infraorder Tylenchomorpha (Class Chromadorea) includes plant parasites that are of agricultural and economic importance, as well as insect-associates and fungal feeding species. Among tylenchomorph plant parasites, members of the superfamily Tylenchoidea, such as root-knot nematodes, have great impact on agriculture. Of the five superfamilies within Tylenchomorpha, one (Aphelenchoidea) includes mainly fungal-feeding species, but also some damaging plant pathogens, including certain Bursaphelenchus spp. The evolutionary relationships of tylenchoid and aphelenchoid nematodes have been disputed based on classical morphological features and molecular data. For example, similarities in the structure of the stomatostylet suggested a common evolutionary origin. In contrast, phylogenetic hypotheses based on nuclear SSU ribosomal DNA sequences have revealed paraphyly of Aphelenchoidea, with, for example, fungal-feeding Aphelenchus spp. within Tylenchomorpha, but Bursaphelenchus and Aphelenchoides spp. more closely related to infraorder Panagrolaimomorpha. We investigated phylogenetic relationships of plant-parasitic tylenchoid and aphelenchoid species in the context of other chromadorean nematodes based on comparative analysis of complete mitochondrial genome data, including two newly sequenced genomes from Bursaphelenchus xylophilus (Aphelenchoidea) and Pratylenchus vulnus (Tylenchoidea). SN - 1471-2148 UR - https://doi.org/10.1186/1471-2148-13-12 DO - 10.1186/1471-2148-13-12 ID - Sultana2013 ER -