Molecular phylogenetics and diversification of the genus Sporophila (Aves: Passeriformes)

Lijtmaer, Darío A; Sharpe, Nadine M.M.; Tubaro, Pablo L.; Lougheed, Stephen C.

doi:10.1016/j.ympev.2004.07.011

Cited by 48 publications

(47 citation statements)

References 78 publications

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“…Sequences in fact clustered together in the neighbourjoining tree and showed no diagnostic characters that could separate species (Kerr et al 2009a). This was consistent with a previous study of the group with shorter mitochondrial sequences (not including COI) that had shown for the first time the complexity of this group (Lijtmaer et al 2004). Later on, Campagna et al (2010) increased the sampling effort to include the DNA barcodes of all species from the clade and two sister species and used more samples per species.…”

Section: Study Cases Where Dna Barcodes Do Not Match Taxonomysupporting

confidence: 93%

The multiple applications of DNA barcodes in avian evolutionary studies

Barreira

Lijtmaer

Tubaro

2016

Genome

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DNA barcodes of birds are currently available for 41% of known species and for many different geographic areas; therefore, they are a rich data source to answer evolutionary questions. We review studies that have used DNA barcodes to investigate evolutionary processes in birds using diverse approaches. We also review studies that have investigated species in depth where taxonomy and DNA barcodes present inconsistencies. Species that showed low genetic interspecific divergence and lack of reciprocal monophyly either are the result of recent radiation and (or) hybridize, while species with large genetic splits in their COI sequences were determined to be more than one independent evolutionary unit. In addition, we review studies that employed large DNA barcode datasets to study the molecular evolution of mitochondrial genes and the biogeography of islands, continents, and even at a multi-continental scale. These studies showed that DNA barcodes offer high-quality data well beyond their main purpose of serving as a molecular tool for species identification.Key words: birds, biogeography, cryptic species, diversification, radiation.Résumé : Des codes à barres de l'ADN sont présentement disponibles pour 41% des espèces connues et pour plusieurs régions géographiques; ils constituent une riche source de données pour répondre à des questions sur l'évolution. Les auteurs passent en revue les études qui ont été réalisées à l'aide de codes à barres afin d'étudier les processus évolutifs chez les oiseaux au moyen de diverses approches. Les auteurs examinent des études qui ont investigué des espèces en profondeur et où la taxonomie et les codes à barres présentent des discordances. Des espèces qui présentaient une faible divergence génétique intra-spécifique et une absence de monophylie récip-roque ont été identifiées comme étant le produit de radiations récentes ou d'hybridation. Par contre, il a été déterminé que les espèces présentant une séparation génétique nette de leurs séquences COI reflétaient plus d'une unité ayant évolué indépendamment. Les auteurs ont également examiné des études qui ont employé de grands jeux de données de codes à barres pour étudier l'évolution moléculaire au sein des gènes mitochondriaux et la biogéographie des îles, des continents et même à l'échelle multi-continentale. Ces études ont montré que les codes à barres de l'ADN procurent des données de grande qualité bien au-delà de leur objectif principal de servir d'outils moléculaires pour l'identification des espèces. [Traduit par la Rédaction]

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Section: Study Cases Where Dna Barcodes Do Not Match Taxonomysupporting

confidence: 93%

The multiple applications of DNA barcodes in avian evolutionary studies

Barreira

Lijtmaer

Tubaro

2016

Genome

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“…This scenario of plumage variations suggests a recent and dynamic radiation, expressed through color morphs and geographical variation in vocalizations (regiolects) (ARETA, 2008;ARETA et al, 2011). Molecular approaches aiming to elucidate the evolutionary history of capuchinos have so far led to convergent conclusions on the group's recent adaptive radiation (LIJTMAER et al, 2004;CAMPAGNA et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Studies on voice and behavior, for example, although still insufficiently used for this group, have been contributing effectively to solving taxonomic difficulties in the genus (SCHWARTZ, 1975;ARETA, 2008;ARETA et al, 2011). On the other hand, molecular approaches have revealed shallow genetic divergence among several species, as is the case for the ten species that form the "Southern Capuchinos group" (LIJTMAER et al, 2004;CAMPAGNA et al, 2009).…”

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confidence: 99%

Another color morph of Sporophila Seedeater from the capuchinos group (Aves, Emberizidae)

Repenning

Rovedder

Fontana

2010

Iheringia, Sér. Zool.

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ABSTRACT. The genus Sporophila (Cabanis, 1844) unites about 30 species of small seedeaters that predominantly inhabit open or semi-open areas in the Neotropical region. The taxonomy of this group is based on morphological studies from collected male specimens. The dynamic spatial and temporal variation in the male plumage and lack of knowledge of their vocalizations make it difficult to properly diagnose some species even today, so these two aspects account for the existing taxonomic dilemmas involving Sporophila. During a four-year field study, we investigated the natural history of a breeding population of Sporophila melanogaster (Pelzeln, 1870). This is an endemic species in Brazil, which reproduces in the high-altitude grasslands of the Atlantic Forest biome. We found four male specimens with clearly diagnosable plumage, distinct from the typical form of the species. Here we describe this previously unreported plumage form. Based on the evaluation of habitat use, vocalization, and reproductive behavior, we tested two hypotheses regarding its taxonomic status. We concluded that this is another case of an intra-specific color morph within the seedeaters of the "capuchinos" group. KEYWORDS.Sporophila melanogaster, Black-bellied seedeater, vocal repertory, habitat use, natural history. RESUMO. Outro morfo de Sporophila do grupo dos caboclinhos (Aves, Emberizidae).O gênero Sporophila (Cabanis, 1844) reúne cerca de 30 espécies de papa-capins de pequeno porte, que habitam predominantemente áreas abertas ou semi-abertas na região Neotropical. A taxonomia do gênero é baseada em estudos morfológicos de exemplares machos adultos coletados. A variação espaço-temporal dinâmica na coloração da plumagem dos machos e a falta de conhecimento sobre suas vocalizações torna difícil diagnosticar adequadamente algumas espécies, de modo que esses dois aspectos são responsáveis pelos dilemas taxonômicos envolvendo Sporophila. Durante quatro anos estudamos a história natural da população reprodutiva de Sporophila melanogaster (Pelzeln, 1870). Essa é uma espécie endêmica do Brasil, que reproduz em campos de altitude do bioma Mata Atlântica. Ao longo desse estudo foram encontrados quatro exemplares machos com plumagem claramente distinta da forma típica conhecida para a espécie. Aqui nós descrevemos essa nova forma, com base na avaliação do uso do hábitat, vocalização e comportamento reprodutivo, e testamos duas hipóteses em relação a sua situação taxonômica. Concluimos tratar-se de mais um morfo de coloração em Sporophila do grupo dos caboclinhos. PALAVRAS-CHAVE.Sporophila melanogaster, caboclinho-de-barriga-preta, repertório vocal, hábitat, história natural.

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“…Other major causes are inadequate phylogenetic resolution (caused by too few phylogenetically informative characters or homoplasy), incomplete lineage sorting and interspecific hybridization. We use this conceptual framework to understand the processes responsible for the mitochondrial genetic pattern observed among the southern capuchinos [16,17], augmenting previous genetic analyses to include additional mitochondrial regions and both nuclear DNA microsatellites and sequences. We expand the analyses to include objective quantification of plumage and song traits among males, two key components of bird mate recognition systems [20].…”

Section: Introductionmentioning

confidence: 99%

Rapid phenotypic evolution during incipient speciation in a continental avian radiation

et al. 2011

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Adaptive radiations have helped shape how we view animal speciation, particularly classic examples such as Darwin's finches, Hawaiian fruitflies and African Great Lakes cichlids. These 'island' radiations are comparatively recent, making them particularly interesting because the mechanisms that caused diversification are still in motion. Here, we identify a new case of a recent bird radiation within a continentally distributed species group; the capuchino seedeaters comprise 11 Sporophila species originally described on the basis of differences in plumage colour and pattern in adult males. We use molecular data together with analyses of male plumage and vocalizations to understand species limits of the group. We find marked phenotypic variation despite lack of mitochondrial DNA monophyly and few differences in other putatively neutral nuclear markers. This finding is consistent with the group having undergone a recent radiation beginning in the Pleistocene, leaving genetic signatures of incomplete lineage sorting, introgressive hybridization and demographic expansions. We argue that this apparent uncoupling between neutral DNA homogeneity and phenotypic diversity is expected for a recent group within the framework of coalescent theory. Finally, we discuss how the ecology of open habitats in South America during the Pleistocene could have helped promote this unique and ongoing radiation.

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Molecular phylogenetics and diversification of the genus Sporophila (Aves: Passeriformes)

Cited by 48 publications

References 78 publications

The multiple applications of DNA barcodes in avian evolutionary studies

The multiple applications of DNA barcodes in avian evolutionary studies

Another color morph of Sporophila Seedeater from the capuchinos group (Aves, Emberizidae)

Rapid phenotypic evolution during incipient speciation in a continental avian radiation

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