Publicação
Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa
| Resumo: | The main objective of this dissertation was to reanalyze the systematics of the Chubbyhead Barbs Species Complex (CBSC) and to assess the phylogenetic relationships between and within the five currently described species (Barbus amatolicus, B. anoplus, B. breviceps, B. gurneyi and B. motebensis). In order to achieve such goals, distinct morphologic and molecular analyses were performed to accurately assess the intra- and inter-populations variability patterns. Fifteen meristic and 22 morphometric traits were studied in a total of 1,042 specimens (most of them housed at SAIAB and AMG Museums), including types specimens. Main significant meristic variables were: nb, number of barbels; and SLL, number of tubules along the lateral line. Two new populations were observed: ‘Barbus’ “Transkei” and ‘Barbus’ “Mozambique”. Analyses confirmed distinct populations of B. gurneyi, B. amatolicus, and B. breviceps. However, B. anoplus and B. motebensis were still presenting low discrimination. Geometric morphology approach, based on 15 landmarks from 348 specimens, showed significant variation between CBSC populations by presenting two major groups: 1) ‘Barbus’ “Transkei” and 2) B. anoplus. A minor group undefined included [B. amatolicus + B. breviceps + B. gurneyi + B. motebensis]. All genetic sequences obtained for cytb, COI and RAG1 genes were analyzed to establish phylogenetic relationships. Results evidenced that original species represent at least nine well defined lineages. By matching all approaches, results evidenced that all five studied species represent nine lineages corresponding to 11 populations: B. ?anoplus typica “Karoo”, B. ?anoplus oraniensis “HighVeld”, B. ?anoplus “Southern Cape”, ?B. motebensis “LowVeld-Incomati”, ?B. motebensis “LowVeld-Phongolo”, ‘Barbus’ “Transkei-Amatola”, ‘Barbus’ “Transkei-KwaZulu Natal”; three described species (B. amatolicus, B. gurneyi, and B. breviceps) and one undescribed species (‘Barbus’ “Mozambique”). Furthermore, new revision is necessary to complete the overall group phylogeny. Indeed, new species descriptions might be anticipated eventually rehabilitating previous CBSC designations. |
|---|---|
| Autores principais: | Costa, Luís Daniel Moreira da, 1969- |
| Assunto: | Barbus Morfometria geométrica Morfologia Filogenia Teses de doutoramento - 2013 |
| Ano: | 2013 |
| País: | Portugal |
| Tipo de documento: | tese de doutoramento |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1866810443678351360 |
|---|---|
| author | Costa, Luís Daniel Moreira da, 1969- |
| author_facet | Costa, Luís Daniel Moreira da, 1969- |
| author_role | author |
| contributor_name_str_mv | Pereira, Maria João Colares, 1952- Skelton, Paul H.(Paul Harvey), 1948- Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Costa, Luís Daniel Moreira da, 1969-\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Pereira, Maria João Colares, 1952- Skelton, Paul H.(Paul Harvey), 1948- Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Costa, Luís Daniel Moreira da, 1969- |
| datacite.date.Accepted.fl_str_mv | 2013-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2013-02-25T12:47:35Z |
| datacite.date.embargoed.fl_str_mv | 2013-02-25T12:47:35Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Barbus Morfometria geométrica Morfologia Filogenia Teses de doutoramento - 2013 |
| datacite.titles.title.fl_str_mv | Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa |
| dc.contributor.none.fl_str_mv | Pereira, Maria João Colares, 1952- Skelton, Paul H.(Paul Harvey), 1948- Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Costa, Luís Daniel Moreira da, 1969- |
| dc.date.Accepted.fl_str_mv | 2013-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2013-02-25T12:47:35Z |
| dc.date.embargoed.fl_str_mv | 2013-02-25T12:47:35Z |
| dc.description.none.fl_str_mv | Le principal objectif de cette thèse était une révision de la systématique du groupe d’espèces de « Chubbyhead »(CBSC) et d'évaluer, ainsi, les relations phylogénétiques entre et au sein des cinq espèces décrites (Barbus amatolicus, B. anoplus, B. breviceps, B. gurneyi et B. motebensis). Afin d'atteindre les principaux objectifs, des analyses morphologiques et moléculaires ont été réalisées. Quinze contages méristiques et 22 caractères morphométriques ont été étudiés sur un total de 1.042 exemplaires (la plupart logés aux Musées du SAIAB et du AMG), y compris des spécimens types. Les caractères distinctifs furent: nb, le nombre de barbillons, et SLL, le nombre de tubes le long de la ligne latérale. Deux nouvelles populations se sont distinguées: ‘Barbus’ « Transkei » et ‘Barbus’ « Mozambique ». Aussi, B. gurneyi, B. amatolicus et B. breviceps sont des populations distinctes. L’approche par morphologie géométrique, effectuée sur 15 variables « landmarks » de 348 spécimens, a distingué significativement deux groupes majeurs: 1) ‘Barbus’ « Transkei » et 2) B. anoplus. Un groupe mineur incluant [B. amatolicus + B. breviceps + B. gurneyi + B. motebensis] a également été observé. Toutes les séquences génétiques obtenues pour les gènes cytb, COI et RAG1 ont été analysées. Les relations phylogénétiques obtenues ont distinguées au moins neuf lignées évolutives bien définies. En faisant correspondre toutes les approches, les résultats ont montré que les cinq espèces étudiées représentent neuf lignées correspondant à un total 11 populations: B. ?anoplus typica « Karoo », B. ?anoplus oraniensis « HighVeld », B. ?anoplus « Southern Cape », ?B. motebensis « LowVeld-Incomati », ?B. motebensis « LowVeld-Phongolo», ‘Barbus’ « Transkei-Amatola », ‘Barbus’ « Transkei-KwaZulu Natal » ; trois espèces décrites (B. amatolicus, B. gurneyi et B. breviceps) et une espèce non décrite (‘Barbus’ « Mozambique »). Ainsi, les descriptions de nouvelles espèces pourraient être prévues avec une éventuellement réhabilitation des désignations originelles des CBSC. De plus, une nouvelle révision est nécessaire pour compléter la phylogénie du groupe dans son ensemble. |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10451/7854 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Barbus Morfometria geométrica Morfologia Filogenia Teses de doutoramento - 2013 |
| dc.title.fl_str_mv | Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_db06 |
| description | The main objective of this dissertation was to reanalyze the systematics of the Chubbyhead Barbs Species Complex (CBSC) and to assess the phylogenetic relationships between and within the five currently described species (Barbus amatolicus, B. anoplus, B. breviceps, B. gurneyi and B. motebensis). In order to achieve such goals, distinct morphologic and molecular analyses were performed to accurately assess the intra- and inter-populations variability patterns. Fifteen meristic and 22 morphometric traits were studied in a total of 1,042 specimens (most of them housed at SAIAB and AMG Museums), including types specimens. Main significant meristic variables were: nb, number of barbels; and SLL, number of tubules along the lateral line. Two new populations were observed: ‘Barbus’ “Transkei” and ‘Barbus’ “Mozambique”. Analyses confirmed distinct populations of B. gurneyi, B. amatolicus, and B. breviceps. However, B. anoplus and B. motebensis were still presenting low discrimination. Geometric morphology approach, based on 15 landmarks from 348 specimens, showed significant variation between CBSC populations by presenting two major groups: 1) ‘Barbus’ “Transkei” and 2) B. anoplus. A minor group undefined included [B. amatolicus + B. breviceps + B. gurneyi + B. motebensis]. All genetic sequences obtained for cytb, COI and RAG1 genes were analyzed to establish phylogenetic relationships. Results evidenced that original species represent at least nine well defined lineages. By matching all approaches, results evidenced that all five studied species represent nine lineages corresponding to 11 populations: B. ?anoplus typica “Karoo”, B. ?anoplus oraniensis “HighVeld”, B. ?anoplus “Southern Cape”, ?B. motebensis “LowVeld-Incomati”, ?B. motebensis “LowVeld-Phongolo”, ‘Barbus’ “Transkei-Amatola”, ‘Barbus’ “Transkei-KwaZulu Natal”; three described species (B. amatolicus, B. gurneyi, and B. breviceps) and one undescribed species (‘Barbus’ “Mozambique”). Furthermore, new revision is necessary to complete the overall group phylogeny. Indeed, new species descriptions might be anticipated eventually rehabilitating previous CBSC designations. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | doctoralThesis |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/97d5131a-a989-4319-bc2b-7c7e8c829209/download |
| id | ul_afe896b4bc1887f83903a4d97c00a99b |
| identifier.url.fl_str_mv | http://hdl.handle.net/10451/7854 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10451/7854 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Costa, Luís Daniel Moreira da, 1969- |
| publishDate | 2013 |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engengThe main objective of this dissertation was to reanalyze the systematics of the Chubbyhead Barbs Species Complex (CBSC) and to assess the phylogenetic relationships between and within the five currently described species (Barbus amatolicus, B. anoplus, B. breviceps, B. gurneyi and B. motebensis). In order to achieve such goals, distinct morphologic and molecular analyses were performed to accurately assess the intra- and inter-populations variability patterns. Fifteen meristic and 22 morphometric traits were studied in a total of 1,042 specimens (most of them housed at SAIAB and AMG Museums), including types specimens. Main significant meristic variables were: nb, number of barbels; and SLL, number of tubules along the lateral line. Two new populations were observed: ‘Barbus’ “Transkei” and ‘Barbus’ “Mozambique”. Analyses confirmed distinct populations of B. gurneyi, B. amatolicus, and B. breviceps. However, B. anoplus and B. motebensis were still presenting low discrimination. Geometric morphology approach, based on 15 landmarks from 348 specimens, showed significant variation between CBSC populations by presenting two major groups: 1) ‘Barbus’ “Transkei” and 2) B. anoplus. A minor group undefined included [B. amatolicus + B. breviceps + B. gurneyi + B. motebensis]. All genetic sequences obtained for cytb, COI and RAG1 genes were analyzed to establish phylogenetic relationships. Results evidenced that original species represent at least nine well defined lineages. By matching all approaches, results evidenced that all five studied species represent nine lineages corresponding to 11 populations: B. ?anoplus typica “Karoo”, B. ?anoplus oraniensis “HighVeld”, B. ?anoplus “Southern Cape”, ?B. motebensis “LowVeld-Incomati”, ?B. motebensis “LowVeld-Phongolo”, ‘Barbus’ “Transkei-Amatola”, ‘Barbus’ “Transkei-KwaZulu Natal”; three described species (B. amatolicus, B. gurneyi, and B. breviceps) and one undescribed species (‘Barbus’ “Mozambique”). Furthermore, new revision is necessary to complete the overall group phylogeny. Indeed, new species descriptions might be anticipated eventually rehabilitating previous CBSC designations.fraLe principal objectif de cette thèse était une révision de la systématique du groupe d’espèces de « Chubbyhead »(CBSC) et d'évaluer, ainsi, les relations phylogénétiques entre et au sein des cinq espèces décrites (Barbus amatolicus, B. anoplus, B. breviceps, B. gurneyi et B. motebensis). Afin d'atteindre les principaux objectifs, des analyses morphologiques et moléculaires ont été réalisées. Quinze contages méristiques et 22 caractères morphométriques ont été étudiés sur un total de 1.042 exemplaires (la plupart logés aux Musées du SAIAB et du AMG), y compris des spécimens types. Les caractères distinctifs furent: nb, le nombre de barbillons, et SLL, le nombre de tubes le long de la ligne latérale. Deux nouvelles populations se sont distinguées: ‘Barbus’ « Transkei » et ‘Barbus’ « Mozambique ». Aussi, B. gurneyi, B. amatolicus et B. breviceps sont des populations distinctes. L’approche par morphologie géométrique, effectuée sur 15 variables « landmarks » de 348 spécimens, a distingué significativement deux groupes majeurs: 1) ‘Barbus’ « Transkei » et 2) B. anoplus. Un groupe mineur incluant [B. amatolicus + B. breviceps + B. gurneyi + B. motebensis] a également été observé. Toutes les séquences génétiques obtenues pour les gènes cytb, COI et RAG1 ont été analysées. Les relations phylogénétiques obtenues ont distinguées au moins neuf lignées évolutives bien définies. En faisant correspondre toutes les approches, les résultats ont montré que les cinq espèces étudiées représentent neuf lignées correspondant à un total 11 populations: B. ?anoplus typica « Karoo », B. ?anoplus oraniensis « HighVeld », B. ?anoplus « Southern Cape », ?B. motebensis « LowVeld-Incomati », ?B. motebensis « LowVeld-Phongolo», ‘Barbus’ « Transkei-Amatola », ‘Barbus’ « Transkei-KwaZulu Natal » ; trois espèces décrites (B. amatolicus, B. gurneyi et B. breviceps) et une espèce non décrite (‘Barbus’ « Mozambique »). Ainsi, les descriptions de nouvelles espèces pourraient être prévues avec une éventuellement réhabilitation des désignations originelles des CBSC. De plus, une nouvelle révision est nécessaire pour compléter la phylogénie du groupe dans son ensemble.application/pdfengSystematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern AfricaCosta, Luís Daniel Moreira da, 1969-Pereira, Maria João Colares, 1952-Skelton, Paul H.(Paul Harvey), 1948-HostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptURNurn:tid:1012291432013-02-25T12:47:35Z20132013-01-01T00:00:00ZHandlehttp://hdl.handle.net/10451/7854http://purl.org/coar/access_right/c_16ecrestricted accessBarbusMorfometria geométricaMorfologiaFilogeniaTeses de doutoramento - 201312586450 bytesliteraturehttp://purl.org/coar/resource_type/c_db06doctoral thesishttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/97d5131a-a989-4319-bc2b-7c7e8c829209/download |
| spellingShingle | Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa Costa, Luís Daniel Moreira da, 1969- Barbus Morfometria geométrica Morfologia Filogenia Teses de doutoramento - 2013 |
| status | SINGLETON |
| subject.fl_str_mv | Barbus Morfometria geométrica Morfologia Filogenia Teses de doutoramento - 2013 |
| title | Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa |
| title_full | Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa |
| title_fullStr | Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa |
| title_full_unstemmed | Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa |
| title_short | Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa |
| title_sort | Systematic studies on the Chubbyhead Barbs species complex (Osteichthyes, Cyprinidae) from Southern Africa |
| topic | Barbus Morfometria geométrica Morfologia Filogenia Teses de doutoramento - 2013 |
| topic_facet | Barbus Morfometria geométrica Morfologia Filogenia Teses de doutoramento - 2013 |
| url | http://hdl.handle.net/10451/7854 |
| visible | 1 |