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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
13/04/2018 |
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Data da última atualização: |
07/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TAHERI, S.; AMES, S.; ROY, V.; DECAËNS, T.; WILLIAMS, B. W.; ANDERSON, F.; ROUGERIE, R.; CHANG, C.-H.; BROWN, G. G.; CUNHA, L.; STANTON, D. W. G.; SILVA, E. da; CHEN, J-H.; LEMMON, A. R.; LEMMON, E. M.; BARTZ, M.; BARETTA, D.; BAROIS, I.; LAPIED, E.; COULIS, M.; DUPONT, L. |
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Afiliação: |
S. TAHERI, Université Paris Est Créteil; S. JAMES, University of Iowa; V. ROY, Université Paris Est Créteil; T. DECAËNS, Université de Montpellier; B. W. WILLIAMS, Southern Illinois University; F. ANDERSON, Southern Illinois University; R. ROUGERIE, Muséum national d'Histoire Naturelle; C.-H. CHANG, Johns Hopkins University; GEORGE GARDNER BROWN, CNPF; L. CUNHA, Cardiff University; D. W. G. STANTON, Cardiff University; ELODIE DA SILVA, Bolsista da Embrapa Florestas; J-H. CHEN, National Taiwan University; A. R. LEMMON, Florida State University; E. MORIARTY LEMMON, Florida State University; MARIE LOUISE BARTZ, Universidade Positivo; D. BARETTA, Universidade do Estado de Santa Catarina; I. BAROIS, Red de Ecología Funcional; E. LAPIED, Norwegian University of Life Sciences; M. COULIS, CIRAD; L. DUPONT, Université Paris Est Créteil. |
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Título: |
Complex taxonomy of the "brush tail" peregrine earthworm Pontoscolex corethrurus. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Molecular Phylogenetics and Evolution, v. 124, p. 60-70, July 2018. |
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DOI: |
10.1016/j.ympev.2018.02.021 |
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Idioma: |
Inglês |
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Conteúdo: |
Pontoscolex corethrurus is the most widespread earthworm species in tropical and sub-tropical zones and one of the most studied in soil science. Although, ecological interactions of P. corethrurus with its environment are well documented, the taxonomic status of the species remains unclear. In this study, we investigated phylogenetic relationships within the genus Pontoscolex, in particular focusing on morphologically indistinguishable (i.e., cryptic) lineages. A total of 792 specimens collected from 25 different countries and islands all over the world were analyzed using two mitochondrial (COI and 16S rDNA) and two nuclear (internal transcribed spacers 2 and 28S rDNA) markers, and a total of 11 morphological characters both internal and external were investigated in all genetically characterized lineages. A large-scale multilocus sequence data matrix was also obtained for Pontoscolex spp. specimens using the Anchored Hybrid Enrichment (AHE) method. Multilocus phylogenetic and phylogenomic analyses, combined with species delimitation methods; including single locus (mPTP, ABGD) and multilocus (BPP) approaches, revealed congruent results. Four cryptic species were supported within the P. corethrurus species complex, and four potentially new species within the genus Pontoscolex. One widespread lineage (L1), within P. corethrurus complex was observed in the current population of Fritz Müller?s garden where P. corethrurus was first described in 1856. Cryptic lineages were observed in sympatry at several localities. This, in combination with observed heteroplasmy in COI gene in one population raises an important question of reproductive isolation between these species. MenosPontoscolex corethrurus is the most widespread earthworm species in tropical and sub-tropical zones and one of the most studied in soil science. Although, ecological interactions of P. corethrurus with its environment are well documented, the taxonomic status of the species remains unclear. In this study, we investigated phylogenetic relationships within the genus Pontoscolex, in particular focusing on morphologically indistinguishable (i.e., cryptic) lineages. A total of 792 specimens collected from 25 different countries and islands all over the world were analyzed using two mitochondrial (COI and 16S rDNA) and two nuclear (internal transcribed spacers 2 and 28S rDNA) markers, and a total of 11 morphological characters both internal and external were investigated in all genetically characterized lineages. A large-scale multilocus sequence data matrix was also obtained for Pontoscolex spp. specimens using the Anchored Hybrid Enrichment (AHE) method. Multilocus phylogenetic and phylogenomic analyses, combined with species delimitation methods; including single locus (mPTP, ABGD) and multilocus (BPP) approaches, revealed congruent results. Four cryptic species were supported within the P. corethrurus species complex, and four potentially new species within the genus Pontoscolex. One widespread lineage (L1), within P. corethrurus complex was observed in the current population of Fritz Müller?s garden where P. corethrurus was first described in 1856. Cryptic lineages were obser... Mostrar Tudo |
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Palavras-Chave: |
Brush tail; Nova espécie. |
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Thesagro: |
Minhoca; Taxonomia. |
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Thesaurus Nal: |
Earthworms; New species; Pontoscolex corethrurus. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02901naa a2200457 a 4500
001 2090562
005 2018-05-07
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1016/j.ympev.2018.02.021$2DOI
100 1 $aTAHERI, S.
245 $aComplex taxonomy of the "brush tail" peregrine earthworm Pontoscolex corethrurus.$h[electronic resource]
260 $c2018
520 $aPontoscolex corethrurus is the most widespread earthworm species in tropical and sub-tropical zones and one of the most studied in soil science. Although, ecological interactions of P. corethrurus with its environment are well documented, the taxonomic status of the species remains unclear. In this study, we investigated phylogenetic relationships within the genus Pontoscolex, in particular focusing on morphologically indistinguishable (i.e., cryptic) lineages. A total of 792 specimens collected from 25 different countries and islands all over the world were analyzed using two mitochondrial (COI and 16S rDNA) and two nuclear (internal transcribed spacers 2 and 28S rDNA) markers, and a total of 11 morphological characters both internal and external were investigated in all genetically characterized lineages. A large-scale multilocus sequence data matrix was also obtained for Pontoscolex spp. specimens using the Anchored Hybrid Enrichment (AHE) method. Multilocus phylogenetic and phylogenomic analyses, combined with species delimitation methods; including single locus (mPTP, ABGD) and multilocus (BPP) approaches, revealed congruent results. Four cryptic species were supported within the P. corethrurus species complex, and four potentially new species within the genus Pontoscolex. One widespread lineage (L1), within P. corethrurus complex was observed in the current population of Fritz Müller?s garden where P. corethrurus was first described in 1856. Cryptic lineages were observed in sympatry at several localities. This, in combination with observed heteroplasmy in COI gene in one population raises an important question of reproductive isolation between these species.
650 $aEarthworms
650 $aNew species
650 $aPontoscolex corethrurus
650 $aMinhoca
650 $aTaxonomia
653 $aBrush tail
653 $aNova espécie
700 1 $aAMES, S.
700 1 $aROY, V.
700 1 $aDECAËNS, T.
700 1 $aWILLIAMS, B. W.
700 1 $aANDERSON, F.
700 1 $aROUGERIE, R.
700 1 $aCHANG, C.-H.
700 1 $aBROWN, G. G.
700 1 $aCUNHA, L.
700 1 $aSTANTON, D. W. G.
700 1 $aSILVA, E. da
700 1 $aCHEN, J-H.
700 1 $aLEMMON, A. R.
700 1 $aLEMMON, E. M.
700 1 $aBARTZ, M.
700 1 $aBARETTA, D.
700 1 $aBAROIS, I.
700 1 $aLAPIED, E.
700 1 $aCOULIS, M.
700 1 $aDUPONT, L.
773 $tMolecular Phylogenetics and Evolution$gv. 124, p. 60-70, July 2018.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
27/03/2012 |
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Data da última atualização: |
27/03/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
STABILE, S. S.; BODINI, A. P.; JANK, L.; RENNÓ, F. P.; SANTOS, M. V.; SILVA, L. F. P. |
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Afiliação: |
S. S. Stabile, USP; A. P. Bodini, USP; LIANA JANK, CNPGC; F. P. Renno, USP; M. V. Santos, USP; L. F. P. Silva, USP. |
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Título: |
Expression of genes from the lignin synthesis pathway in guineagrass genotypes differing in cell-wall digestibility. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Grass and Forage Science, v.67, p.43-54, 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Rapid decline in cell-wall digestibility hinders efficient use of warm-season grasses. The objective of this study was to identify genes whose expressions are related to the slope of decline in cell-wall digestibility. Eleven guineagrass genotypes were harvested at three ages and classified according to fibre digestibility. Extreme genotypes were separated into groups with either FAST or SLOW decline in fibre digestibility. Expression of transcripts from six genes from the lignin synthesis pathway was quantified by real-time PCR. Fast decline in fibre digestibility was associated with higher DM yield after 90 d of regrowth. Apart from lower fibre digestibility and higher lignin content for the FAST group, there were no other differences between the two groups for the chemical composition of stems and leaves. Maturity affected differently the expression of two of the six genes, cinnamate 4-hydroxylase and caffeoyl-CoA O-methyltransferase (C4H and CCoAOMT). Genotypes with fast decline in fibre digestibility had greater increase in the expression of C4H and CCoAOMT from 30 to 60 d of regrowth, than genotypes with slower decline. Expression of C4H and CCoAOMT appears to be related to the decline in cell-wall digestibility with advance in maturity of guineagrass. |
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Thesagro: |
Melhoramento Genético Vegetal; Panicum Maximum; Pastagem. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 01939naa a2200217 a 4500
001 1920517
005 2012-03-27
008 2011 bl uuuu u00u1 u #d
100 1 $aSTABILE, S. S.
245 $aExpression of genes from the lignin synthesis pathway in guineagrass genotypes differing in cell-wall digestibility.$h[electronic resource]
260 $c2011
520 $aRapid decline in cell-wall digestibility hinders efficient use of warm-season grasses. The objective of this study was to identify genes whose expressions are related to the slope of decline in cell-wall digestibility. Eleven guineagrass genotypes were harvested at three ages and classified according to fibre digestibility. Extreme genotypes were separated into groups with either FAST or SLOW decline in fibre digestibility. Expression of transcripts from six genes from the lignin synthesis pathway was quantified by real-time PCR. Fast decline in fibre digestibility was associated with higher DM yield after 90 d of regrowth. Apart from lower fibre digestibility and higher lignin content for the FAST group, there were no other differences between the two groups for the chemical composition of stems and leaves. Maturity affected differently the expression of two of the six genes, cinnamate 4-hydroxylase and caffeoyl-CoA O-methyltransferase (C4H and CCoAOMT). Genotypes with fast decline in fibre digestibility had greater increase in the expression of C4H and CCoAOMT from 30 to 60 d of regrowth, than genotypes with slower decline. Expression of C4H and CCoAOMT appears to be related to the decline in cell-wall digestibility with advance in maturity of guineagrass.
650 $aMelhoramento Genético Vegetal
650 $aPanicum Maximum
650 $aPastagem
700 1 $aBODINI, A. P.
700 1 $aJANK, L.
700 1 $aRENNÓ, F. P.
700 1 $aSANTOS, M. V.
700 1 $aSILVA, L. F. P.
773 $tGrass and Forage Science$gv.67, p.43-54, 2011.
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Embrapa Gado de Corte (CNPGC) |
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