Back to Search
Start Over
Plant-parasitic nematodes associated with sugarcane in Kilimanjaro, Tanzania
- Source :
- Journal of Nematology, Vol 52, Iss i_current (2020), Journal of Nematology, 52, 1-17, JOURNAL OF NEMATOLOGY, Journal of Nematology 52 (2020), Journal of Nematology
- Publication Year :
- 2020
- Publisher :
- Walter de Gruyter GmbH, 2020.
-
Abstract
- Morphological and molecular analyses of plant-parasitic nematodes (PPN) from 12 sugarcane plantation sites of Tanganyika Planting Company (TPC) Limited in Kilimanjaro region of Tanzania revealed the presence of six PPN genera, i.e. Helicotylenchus, Hemicycliophora, Pratylenchus, Rotylenchulus, Scutellonema, and Tylenchorhynchus. The genera with the highest densities and present in virtually all samples were Pratylenchus and Rotylenchulus, and the most important species appeared to be R. parvus, P. zeae, T. crassicaudatus, and T. ventrosignatus. A total sequences of 11 partial ITS, 15 D2-D3 of 28S, and 6 partial 18S of rRNA gene, and 7 partial COI gene of mtDNA of these species were obtained in this study. Morphology and molecular data comparisons between the Tanzanian R. parvus and the South African R. parvus indicated that R. parvus is a cryptic species complex. Based on the results of morphological and molecular analyses of T. crassicaudatus and T. agri from China, Haiti, Indonesia, Iran, Niger and the USA, T. agri syn. n. is proposed as a junior synonym of T. crassicaudatus. Morphological and molecular analyses of plant-parasitic nematodes (PPN) from 12 sugarcane plantation sites of Tanganyika Planting Company (TPC) Limited in Kilimanjaro region of Tanzania revealed the presence of six PPN genera, i.e. Helicotylenchus, Hemicycliophora, Pratylenchus, Rotylenchulus, Scutellonema, and Tylenchorhynchus. The genera with the highest densities and present in virtually all samples were Pratylenchus and Rotylenchulus, and the most important species appeared to be R. parvus, P. zeae, T. crassicaudatus, and T. ventrosignatus. A total sequences of 11 partial ITS, 15 D2-D3 of 28S, and 6 partial 18S of rRNA gene, and 7 partial COI gene of mtDNA of these species were obtained in this study. Morphology and molecular data comparisons between the Tanzanian R. parvus and the South African R. parvus indicated that R. parvus is a cryptic species complex. Based on the results of morphological and molecular analyses of T. crassicaudatus and T. agri from China, Haiti, Indonesia, Iran, Niger and the USA, T. agri syn. n. is proposed as a junior synonym of T. crassicaudatus.
- Subjects :
- 28S
0106 biological sciences
Species complex
010607 zoology
Tanzania
01 natural sciences
MITOCHONDRIAL
Synonymy
COI
ROTYLENCHULUS-RENIFORMIS
OLIVEIRA
Tylenchorhynchus
PHYLOGENETIC-RELATIONSHIPS
Botany
Tylenchorhynchus agri
Kilimanjaro
Rotylenchulus parvus
Root-knot nematode
ROOT-KNOT NEMATODE
MOLECULAR CHARACTERIZATION
Helicotylenchus
Rotylenchulus reniformis
lcsh:QH301-705.5
Phylogeny
Plant-parasitic nematodes
Taxonomy
biology
Arts & Humanities
Biology and Life Sciences
LINFORD
Sugarcane
biology.organism_classification
lcsh:Biology (General)
GENUS PRATYLENCHUS
HETERODERIDAE
Taxonomy (biology)
TPC
ITS
Pratylenchus
Agronomy and Crop Science
T. crassicaudatus
010606 plant biology & botany
Subjects
Details
- ISSN :
- 2640396X and 0022300X
- Volume :
- 52
- Database :
- OpenAIRE
- Journal :
- Journal of Nematology
- Accession number :
- edsair.doi.dedup.....78e932ae7e879f2a6751a81d0d28f70f
- Full Text :
- https://doi.org/10.21307/jofnem-2020-059