João Neiva | CCMAR

João Neiva

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Posições

Investigador

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Grupo

Biogeographical Ecology and Evolution

Local de trabalho

CCMAR - Faro (Campus de Gambelas)

jmneiva@ualg.pt

Sobre mim

When I started my PhD in 2007 phylogeographic research was heavily biased towards mobile animals and terrestrial paradigms dominated despite the very different environmental settings and biological communities found in the sea. This led me to focus on a different biological model – a low-dispersal macroalgae - and on the development of new conceptual models to explain differences in genetic composition and diversity across marine species ranges. During these formative years I have published several influential papers (>120 citations) linking climatic shifts and extant phylogeographic patterns, emphasising the role of poorly understood demographic-genetic (e.g. gene-surfing) effects. At this stage, idiosyncratic differences among related macroalgae sharing similar habitats, dispersal ecologies and distributions also became apparent. A key goal of my 2012-2018 post-doc project was precisely to disentangle individualistic vs community responses of macroalgae assemblages to large-scale climatic perturbations.

In the past years I have been analysing with molecular markers several assemblages with contrasting thermal affinities and distributions. I published several case studies and led a book-chapter review showing how glacial-interglacial cycles act to erase, concentrate, differentiate or homogenize gene pools across different parts of species ranges, and how extant climatic refugia are threatened by ongoing climatic change. Genetic work also revealed that hybridization can be an important evolutionary process in macroalgae evolution. Key findings include the introgression and even replacement of native organelle genomes among Fucus species and the description for the first time of marine hybrid polyploids among Pelvetiopsis.

In more recent years I have been trying to consolidate these research lines and expanding them into new directions, integrating more closely classical phylogeographic approaches with niche modelling and NGS data, embracing new models (e.g. southern African and Mediterranean endemics) and exploring novel biogeographical settings and hypotheses.

Coordenação dos projetos

Abordagens inovadoras de recuperação e gestão das florestas de algas no Mar Mediterrâneo

FORESCUE

Membro dos projetos

Florestas Marinhas de animais, plantas e algas: "nature-based tools" para proteger e recuperar biodiversidade

RESTORESEAS

Functional Variability and Dynamics of Responses of Marine Forests to Global Change - MARFOR.

MARFOR

Selected Publications

Neiva, J., Assis, J., Fragkopoulou, E., Pearson, G.A., Raimondi, P.T. et al. (in press) Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus. Frontiers in Ecology and Evolution.

Neiva, J., Bermejo, R., Medrano, A., Capdevila, P., Milla-Figueras et al. (2023) DNA barcoding reveals cryptic diversity, taxonomic conflicts and novel biogeographical insights in Cystoseira s.l. (Phaeophyceae). European Journal of Phycology 58: 351-375. https://doi.org/10.1080/09670262.2022.2126894

Almeida, S.C., Neiva, J., Sousa, F., Martins, N., Cox S.J et al. (2022) A low-latitude species pump: Peripheral isolation, parapatric speciation and mating-system evolution converge in a marine radiation. Molecular Ecology 31: 4797-4817. https://doi.org/10.1111/mec.16623

Assis, J., Neiva, J., Bolton, J.J., Rothman, M.D., Gouveia, L. et al. (2022) Ocean currents shape the genetic structure of a kelp in southwestern Africa. Journal of Biogeography 49: 822-835. https://onlinelibrary.wiley.com/doi/full/10.1111/jbi.14338

Neiva, J., Serrão, E. A., Paulino, C., Gouveia, L., Tamigneaux, É. et al. (2020) Genetic structure of amphi-Atlantic Laminaria digitata (Laminariales, Phaeophyceae) reveals a unique range-edge gene pool and suggests post- glacial colonization of the NW Atlantic. European Journal of Phycology 55: 517-528. https://doi.org/10.1080/09670262.2020.1750058

Bringloe, T. T., Starko, S., Wade, R. M., Vieira, C., Kawai, H. Et al. (2020) Phylogeny and Evolution of the Brown Algae. Critical Reviews in Plant Sciences 39: 281–321. https://doi.org/10.1080/07352689.2020.1787679

Sousa, F., Neiva, J., Martins, N., Jacinto, R., Anderson, L. et al. (2019) Increased evolutionary rates and conserved transcriptional response following allopolyploidisation in brown algae. Evolution 73: 59–72. https://doi.org/10.1111/evo.13645

Neiva, J., Paulino, C., Nielsen, M.M., Krause-Jensen, D., Saunders, G.W. et al. (2018) Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima. Scientific Reports 8: 1112. https://doi.org/10.1038/s41598-018-19620-7

Neiva, J., Serrão, E. A., Anderson, L., Raimondi, P. T., Martins, N. et al. (2017) Cryptic diversity, geographical endemism and allopolyploidy in NE Pacific seaweeds. BMC Evolutionary Biology 17: 30. https://doi.org/10.1186/s12862-017-0878-2

Neiva, J., Serrão, E. A., Assis, J., Pearson, G. A., Coyer, J. A., et al. (2016) Climate Oscillations, Range Shifts and Phylogeographic Patterns of North Atlantic Fucaceae. Seaweed Phylogeography - Adaptation and Evolution of Seaweeds under Environmental Change (Z.-M. Hu & (C. Fraser, eds): pp. 279–308. Springer Netherlands. https://doi.org/10.1007/978-94-017-7534-2_11

Neiva, J., Assis, J., Coelho, N. C., Fernandes, F., Pearson, G. A. & Serrão, E. A. (2015) Genes left behind: Climate change threatens cryptic genetic diversity in the canopy-forming seaweed Bifurcaria bifurcata. PLoS ONE 10: e0131530. https://doi.org/10.1371/journal.pone.0131530

Neiva, J., Pearson, G. A., Valero, M. & Serrão, E. A. (2012) Drifting fronds and drifting alleles: range dynamics, local dispersal and habitat isolation shape the population structure of the estuarine seaweed Fucus ceranoides. Journal of Biogeography 39: 1167–1178. https://doi.org/10.1111/j.1365-2699.2011.02670.x

Neiva, J., Pearson, G. A., Valero, M. & Serrão, E. A. (2012) Fine-scale genetic breaks driven by historical range dynamics and ongoing density-barrier effects in the estuarine seaweed Fucus ceranoides L. BMC Evolutionary Biology 12: 78. https://doi.org/10.1186/1471-2148-12-78

Neiva, J., Pearson, G. A., Valero, M. & Serrão, E. A. (2010) Surfing the wave on a borrowed board: range expansion and spread of introgressed organellar genomes in the seaweed Fucus ceranoides L. Molecular Ecology 19: 4812–22. https://doi.org/10.1111/j.1365-294X.2010.04853.x