Mariana Freitas Nery

• Abstract

  Aquatic mammals exhibit metabolic adaptations to manage energy demand and resource scarcity. Carnivorous species such as odontocetes and pinnipeds have adapted to low-carbohydrate diets, developing insulin resistance to maintain glycemic homeostasis. Moreover, various aquatic mammal species experience prolonged fasting periods for migratory and reproductive purposes. Extreme diets and fas…

  Investigating Energy Metabolism in Aquatic Mammals: Molecular Evolution and Gene Expression Patterns, BP.DR

• Abstract

  The advent of massive sequencing methods has turned genomics into an important tool in the study of molecular evolution, especially considering its potential to identify candidate genes and gene families that can reveal genomic traits acquired during species adaptation. The franciscana dolphin, Pontoporia blainvillei, is a species in coastal and estuarine environments with a restricted di…

  Genomic analysis and evolutionary patterns in the franciscana dolphin: an integrative approach to conservation, BP.PD

• Abstract

  The Peruvian fur seal is an endangered pinniped (Vulnerable-VU, according to the IUCN red list of threatened species) recently proposed as a hybrid species that originated around 430 Kya from hybrid homoploid speciation after short periods of genomic introgression between the South American and the Galapagos fur seal. The secondary contact with one of the parental species, the Galapagos f…

  Fur seals of South America: are they the sentinels of climate change Integrative analyses and genomics as tools for biodiversity conservation, BP.PD

(Only some records are available in English at this moment)

• Abstract

  Sensory systems play a crucial role in animal survival, including mechanoreception (somatosensory and auditory systems), chemoreception (smell and taste), and photoreception (vision). From a genetic point of view, most sensory receptors are inserted in large gene families. In the somatosensory system, TRP channels (subfamilies TRPA, TRPM and TRPV) and Piezo channels 1 and 2 are the best c…

  Molecular evolution of sensory systems in aquatic mammals in the context of the transition from terrestrial to aquatic environments, BP.MS

• Abstract

  The brain, an organ of the central nervous system, can process, store, and learn from the information. Comprising glial cells and neurons, it is metabolically expensive and holds significant adaptive value. Understanding the environmental pressures that have shaped complex brains is a long-standing question in biology. Advances in molecular biology and genetics can help reveal genes assoc…

  Molecular evolution of genes related to cetaceans' brain development and the possible relation to their social complexity., BP.MS

• Abstract

  Com o advento dos métodos de sequenciamento massivo e a recente acessibilidade a esses métodos, surgem novas oportunidades de pesquisas que permitirão significativo progresso no nosso conhecimento sobre as bases genômicas da diversidade fenotípica. A disponibilidade de novos genomas também permite que organismos não-modelo emerjam como grupos com alto potencial para responder perguntas so…

  Developing an analytical pipeline for bioinformatic analyses in comparative genomics, BP.TT

(Only some records are available in English at this moment)

• Abstract

  The Peruvian fur seal (Arctocephalus australis) is a recently recognized hybrid lineage that arose through homoploid hybrid speciation between the South American and Galápagos fur seals approximately 430,000 years ago. Restrict to the Peruvian and northern Chilean coasts, this lineage is highly vulnerable to the increasing frequency and intensity of El Niño events and other climatic extre…

  Integrative genomic approaches to the evolutionary history and adaptation of the fur seals from South America, BE.EP.PD

• Abstract

  An enduring goal in Evolutionary Biology is to decipher the molecular underpinnings that have driven species' evolution, leading to the vast biodiversity present on our planet today. Comparative genomics has become an indispensable approach in this endeavor, identifying specific genetic variations responsible for group divergence and highlighting genes and genomic regions associated with …

  Investigating convergent evolution and advancing conservation: a genomic approach focusing on aquatic mammals, BE.PQ

• Abstract

  Corvidae is one of the most studied birds families regarding behavioural and neurological complexity. Along with relatively big brains to body mass, high total number of neurons and neuronal density, they are parallel to great apes in behavioural complexity and neuron augmentation pattern. The Cognitive Buffer Hypothesis proposes that the adaptive value of brain size and function is to bu…

  Using ecological and transcriptomic data to investigate brain evolution and cognition: an experimental study using eurasian magpies, BE.EP.MS

• Abstract

  Cetaceans and pinnipeds are two lineages of mammals that evolved to the aquatic environment, facing many selective pressures compared to their terrestrial close relatives. One of the challenges of a breathing-air animal living in water is the limitation of oxygen available during the dive periods, restricted to the amount of oxygen dissolved in blood the animal can carry. One adaptation t…

  Investigating gene expression patterns in aquatic mammal lineage cells under hypoxia and oxidative stress induced by reoxygenation, BE.EP.DD

(Only some records are available in English at this moment)