SPERM EVOLUTION

Towards an evolutionary ecology of spermatogenesis

 Coordinatore UNIVERSITAET BIELEFELD 

 Organization address address: UNIVERSITAETSSTRASSE 25
city: BIELEFELD
postcode: 33615

contact info
Titolo: Ms.
Nome: Erika
Cognome: Sahrhage
Email: send email
Telefono: +49 521 106 3949

 Nazionalità Coordinatore Germany [DE]
 Totale costo 64˙583 €
 EC contributo 64˙583 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2012-CIG
 Funding Scheme MC-CIG
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-09-01   -   2015-03-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    UNIVERSITAET BIELEFELD

 Organization address address: UNIVERSITAETSSTRASSE 25
city: BIELEFELD
postcode: 33615

contact info
Titolo: Ms.
Nome: Erika
Cognome: Sahrhage
Email: send email
Telefono: +49 521 106 3949

DE (BIELEFELD) coordinator 64˙583.23

Mappa


 Word cloud

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reproductive    testis    function    species    shapes    post    copulatory    sexual    biology    evolutionary    related    spermatogenesis    sperm    evolution    traits    male   

 Obiettivo del progetto (Objective)

'The essentials of sperm function differ little from one species to another, and yet there is tremendous diversity among species in the type and number of sperm a male produces. My research programme aims to understand how these traits, which are fundamental to male fertility, evolve. Specifically, I aim to identify selective forces acting on sperm, spermatogenesis and the testis, and adopt a multidisciplinary approach to test the working hypothesis that post-copulatory sexual selection has been a major force during sperm and testis evolution. Such a research programme is needed, because evolutionary biologists have traditionally treated the testis as a “black box” (ignoring the details of its function) whereas more clinically-orientated research has usually not considered how evolutionary history shapes the complex machinery of spermatogenesis. The time is ripe for a more integrative programme.

In this project, I will build on recent progress to develop Macrostomum flatworms as a model system for studying the evolutionary biology of sperm, spermatogenesis and the testis. By in-depth studies of two closely related flatworm species, and comparative studies incorporating additional species, I will focus on testing how two radically different fertilization mechanisms affect the evolution of male reproductive function. The project will provide crucial information on the genetic architecture of sperm traits; on plasticity in sperm traits; and on how post-copulatory sexual selection shapes male reproductive phenotypes beyond gross testis size.

The results of the project will begin to build a more complete “evolutionary ecology of spermatogenesis”, with wide implications for our understanding of the male gamete and its production by the testis; thus they will be applicable both to the immediate field of evolutionary biology, and to related areas of biomedical and clinical research.'

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