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Comparte este recurso  
  Título original:    
  Research seminar: GENOMICS FOR UNDERSTANDING ECOLOGICAL AND EVOLUTIONARY PATTERNS IN MARINE INVERTEBRATES  

  Documentos relacionados
  Título:  
  Seminario de Investigación: GENÓMICA PARA LA COMPRENSIÓN DE PATRONES ECOLÓGICOS Y EVOLUTIVOS EN INVERTEBRADOS MARINOS  
  Idioma:  
  Inglés  
  Duración:  
  53 min.  
  Signatura:  
  VI06747  
  Fecha de
producción: 
 
  18/03/2022  
  Nivel:  
  Estudios universitarios  
  Resumen:  
 

High-throughput sequencing has revolutionized the field of evolutionary biology, providing tools to answer long-standing questions at an unprecedented fine detail. The flexibility of library preparation methodologies and sequencing platforms allows mass and parallel analysis of hundreds of samples to understand from phylum to population patterns. In particular, ‘omics has fueled the development of evolutionary biology of marine invertebrates, providing tools to address a panoply of questions. In my group, we take advantage of a wide array of ‘omic tools, including genomics, transcriptomics, amplicon sequencing and metabarcoding to understand evolutionary and ecological questions in sponges and other invertebrates.

In my seminar, I will introduce you to three of our latest projects. The first one deals with the origin and evolution of sexual reproduction in the animal kingdom, and we applied genomics and transcriptomics to investigate the molecular toolkits for gametogenesis and vitellogenesis, finding that the molecular bases of these processes are conserved from sponges to humans. We also benefited from the advance in microbiome analysis to assess the role of the symbiotic communities in sponges, which has its roots in the nutritional requirements of the sponge hosts during the demanding reproductive times.

The second one aims to estimate gene flow, genetic diversity and demographic changes in deep-sea sponge populations using RADseq approaches. Our pioneer results show remarkable long dispersal abilities of deep-sea sponges, with high levels of gene flow across the same isobaths fueled by the strong currents and the lack of structural barriers. Interestingly, populations of deep-sea sponges of the genus Geodia show the major genetic break at 1300 m, isolating the populations across this depth in the entire distribution range, and points to specific areas in need of special measures for the protection of sponge grounds.

Finally, our third project deals with the development of sponges as natural samplers of eDNA to monitor biodiversity in aquatic systems taking advantage of their incredible filtering abilities. We have proved the capabilities of sponges in filtering and retaining eDNA longer than in the seawater column, making them ideal systems for aiding conservation strategies of biomonitoring in aquatic ecosystems. Our aim is to establish sponge eDNA as a standard methodology that will allow virtually all laboratories to employ low cost, replicable, and efficient filtration systems to compare between ecosystems.

 
  Colección:  
  Museo Nacional de Ciencias Naturales, CSIC  
  País de
producción:  
 
  España  
  Ficha técnica:  
 

Ponente: Ana Riesgo Gil, Biodiversidad y Biología Evolutiva del Museo Nacional de Ciencias Naturales, MNCN-CSIC.

Moderador: Rafael Zardoya, Director del MNCN-CSIC.

Retransmisión: Jose María Cazcarra, Vicedirección de Comunicación y Cultura Científica MNCN-CSIC y Noelia Cejuela, Servicio de Audiovisuales-Mediateca MNCN-CSIC.

Realización y edición: Servicio de Audiovisuales-Mediateca MNCN-CSIC.

 

 

 
  Observaciones:  
 

Seminario organizado por el Departamento de Biogeografía y Cambio Global del Museo Nacional de Ciencias Naturales, MNCN-CSIC.

 
  Productora:  
  Museo Nacional de Ciencias Naturales (MNCN)

C/ José Gutiérrez Abascal, 2
28006 Madrid
Tlno: 91 411 13 28
Fax:  91 564 50 78
http://www.mncn.csic.es

 
 


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