Morphological and molecular characterisation and diagnostics of some species of Scutellonema Andrassy, 1958 (Tylenchida: Hoplolaimidae) with a molecular phylogeny of the genus
Scutellonema spp. are widely distributed across tropical and subtropical regions of the world and are associated with numerous agricultural and horticultural crops. Identification of many Scutellonema species is not always reliable, in part because many species share very similar diagnostic characte...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Brill
2013
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/76657 |
| _version_ | 1855529893087936512 |
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| author | Berg, E. van den Tiedt, L.R. Coyne, Danny L. Ploeg, A.T. Navas-Cortes, J.A. Roberts, P.A. Yeates, G.W. Subbotin, S.A. |
| author_browse | Berg, E. van den Coyne, Danny L. Navas-Cortes, J.A. Ploeg, A.T. Roberts, P.A. Subbotin, S.A. Tiedt, L.R. Yeates, G.W. |
| author_facet | Berg, E. van den Tiedt, L.R. Coyne, Danny L. Ploeg, A.T. Navas-Cortes, J.A. Roberts, P.A. Yeates, G.W. Subbotin, S.A. |
| author_sort | Berg, E. van den |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Scutellonema spp. are widely distributed across tropical and subtropical regions of the world and are associated with numerous agricultural and horticultural crops. Identification of many Scutellonema species is not always reliable, in part because many species share very similar diagnostic characters. In this study, we provide morphological and molecular characterisation of S.brachyurus from the USA and South Africa, S. bradys from Nigeria and three unidentified species from California, USA, New Zealand and Burkina Faso. Morphological descriptions, measurements, light and scanning electron microscopic photos and drawings are given for S. brachyurus. Females of S. brachyurus from the USA (type A) and South Africa (type B) showed a significant variation in the number of sectors and blocks on the lip annuli, ranging from about 4-12 and from 8-20, respectively. Molecular analysis using the D2-D3 of 28S rRNA, ITS rRNA and the COI mtDNA gene sequences revealed two distinct genotypes within S. brachyurus samples: type A (samples from USA, Italy, Korea, Taiwan) and type B (South Africa). Multivariate analyses determined that S. brachyurus from the USA and Taiwan (type A) differed from that from South Africa (type B) mainly in body, tail and DGO lengths, and ratios b , c , c and V. Phylogenetic relationships within Scutellonema are given as inferred from the analyses of the D2-D3 of 28S rRNA, ITS rRNA and the COI mtDNA gene sequences. PCR-RFLP diagnostic profiles and PCR with species-specific primers are developed for the studied
Scutellonema species. |
| format | Journal Article |
| id | CGSpace76657 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | Brill |
| publisherStr | Brill |
| record_format | dspace |
| spelling | CGSpace766572023-06-12T16:31:08Z Morphological and molecular characterisation and diagnostics of some species of Scutellonema Andrassy, 1958 (Tylenchida: Hoplolaimidae) with a molecular phylogeny of the genus Berg, E. van den Tiedt, L.R. Coyne, Danny L. Ploeg, A.T. Navas-Cortes, J.A. Roberts, P.A. Yeates, G.W. Subbotin, S.A. morphology multivariate analysis scutellonema brachyurum scutellonema bradys taxonomy Scutellonema spp. are widely distributed across tropical and subtropical regions of the world and are associated with numerous agricultural and horticultural crops. Identification of many Scutellonema species is not always reliable, in part because many species share very similar diagnostic characters. In this study, we provide morphological and molecular characterisation of S.brachyurus from the USA and South Africa, S. bradys from Nigeria and three unidentified species from California, USA, New Zealand and Burkina Faso. Morphological descriptions, measurements, light and scanning electron microscopic photos and drawings are given for S. brachyurus. Females of S. brachyurus from the USA (type A) and South Africa (type B) showed a significant variation in the number of sectors and blocks on the lip annuli, ranging from about 4-12 and from 8-20, respectively. Molecular analysis using the D2-D3 of 28S rRNA, ITS rRNA and the COI mtDNA gene sequences revealed two distinct genotypes within S. brachyurus samples: type A (samples from USA, Italy, Korea, Taiwan) and type B (South Africa). Multivariate analyses determined that S. brachyurus from the USA and Taiwan (type A) differed from that from South Africa (type B) mainly in body, tail and DGO lengths, and ratios b , c , c and V. Phylogenetic relationships within Scutellonema are given as inferred from the analyses of the D2-D3 of 28S rRNA, ITS rRNA and the COI mtDNA gene sequences. PCR-RFLP diagnostic profiles and PCR with species-specific primers are developed for the studied Scutellonema species. 2013 2016-08-30T12:46:11Z 2016-08-30T12:46:11Z Journal Article https://hdl.handle.net/10568/76657 en Limited Access Brill Van Den Berg, E., Tiedt, L.R., Coyne, D., Ploeg, A.T., Navas-Cortes, J.A., ... Subbotin, S.A.(2013). Morphological and molecular characterisation and diagnostics of some species of Scutellonema Andrássy, 1958 (Tylenchida: Hoplolaimidae) with a molecular phylogeny of the genus. Nematology, 15(6), 719-745. |
| spellingShingle | morphology multivariate analysis scutellonema brachyurum scutellonema bradys taxonomy Berg, E. van den Tiedt, L.R. Coyne, Danny L. Ploeg, A.T. Navas-Cortes, J.A. Roberts, P.A. Yeates, G.W. Subbotin, S.A. Morphological and molecular characterisation and diagnostics of some species of Scutellonema Andrassy, 1958 (Tylenchida: Hoplolaimidae) with a molecular phylogeny of the genus |
| title | Morphological and molecular characterisation and diagnostics of some species of Scutellonema Andrassy, 1958 (Tylenchida: Hoplolaimidae) with a molecular phylogeny of the genus |
| title_full | Morphological and molecular characterisation and diagnostics of some species of Scutellonema Andrassy, 1958 (Tylenchida: Hoplolaimidae) with a molecular phylogeny of the genus |
| title_fullStr | Morphological and molecular characterisation and diagnostics of some species of Scutellonema Andrassy, 1958 (Tylenchida: Hoplolaimidae) with a molecular phylogeny of the genus |
| title_full_unstemmed | Morphological and molecular characterisation and diagnostics of some species of Scutellonema Andrassy, 1958 (Tylenchida: Hoplolaimidae) with a molecular phylogeny of the genus |
| title_short | Morphological and molecular characterisation and diagnostics of some species of Scutellonema Andrassy, 1958 (Tylenchida: Hoplolaimidae) with a molecular phylogeny of the genus |
| title_sort | morphological and molecular characterisation and diagnostics of some species of scutellonema andrassy 1958 tylenchida hoplolaimidae with a molecular phylogeny of the genus |
| topic | morphology multivariate analysis scutellonema brachyurum scutellonema bradys taxonomy |
| url | https://hdl.handle.net/10568/76657 |
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