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ORIGINS: WHAT MADE EUKARYOTES REPRODUCE SEXUALLY? July 27, 2022

08:30 - 09:00

Registration

09:00 - 09:10

Welcome address

- Mónica Bettencourt-Dias

- Sarah Otto

- Antoine Molaro

- Paulo Navarro-Costa

Session 1:
THE ORIGIN AND MAINTENANCE OF SEX
09:10 - 09:50

The evolutionary enigma of sex. Sarah Otto (University of British Columbia, Canada)

09:50 - 10:15

Selected Talk:

Genomic causes and consequences of asexuality in Schmidtea mediterranea. Jeremias Brand (Max Planck Institute for Multidisciplinary Sciences, Germany)

10:15 - 10:40

Selected talk:

Meiotic sex: the key to genomic integrity in ancestral eukaryotes. Marco Colnaghi (University College London, UK)  

10:40 - 11:00

Morning Break

Session 2:
TWO TO TANGO: SEX AND DIVERSITY
11:00 - 11:40

The causes and consequences of haploid gametic selection in 'diploid' organisms. Simone Immler (University of East Anglia, UK)

11:40 - 12:05

Selected talk:

On how meiosis can shape sex chromosome evolution. Aurora Ruiz-Herrera (Institut de Biotecnologia i Biomedicina, Barcelona)

12:05 - 12:30

Selected talk:

DNA repair during non-reductional meiosis in the asexual rotifer Adineta vaga. Karine Van Doninck (University of Namur, Belgium) 

12:30 - 14:30

Lunch

14:30 - 15:00

Flash Presentations

Session 3:
SHIFTING SANDS – THE EVOLUTION OF MEIOTIC PROCESSES
15:00 - 15:40

The evolution of germline and somatic X-dosage compensation. James Turner (Francis Crick Institute, UK) 

15:40 - 16:05

Selected talk:

Conserved meiotic mechanisms in the cnidarian Clytia hemisphaerica revealed by Spo11 knockout. Jean-René Huynh (Collège de France)

16:05 - 16:30

Selected talk:

Polycomb group proteins prevent the assembly of alternative synaptonemal complex structures during meiosis. Rui Martinho (University of Aveiro, Portugal)

16:30 - 17:00

Afternoon break

Session 4:
SEX CHROMOSOME EVOLUTION
17:00 - 17:40

Tales of the Y chromosome: heterochromatin, aging & meiotic conflicts. Doris Bachtrog (University of California Berkley, USA) 

17:40 - 18:05

Selected talk:

Battle of the sex chromosomes: competition between X- and Y-chromosome encoded proteins for partner interaction and chromatin occupancy drives multi-copy gene expression in mouse gametes. Julie Cocquet (Institut Cochin, France) 

18:05 - 18:30

Selected talk:

Meiotic drive and suppression: de novo protamine copies and hairpin RNAs fuel intragenomic arms races in the male germline. Jeffrey Vedanayagam (Sloan-Kettering Institute, USA)

18:30

Wine, Posters & Cheese Session

EVOLUTION: WHAT ARE THE CONSTRAINTS THAT SHAPE REPRODUCTION? July 28, 2022

Session 5:
HOW CONSTRAINTS AND INTERACTIONS SHAPE GERM CELL EVOLUTION
09:00 - 09:40

Open questions in germ line evolution: where do we go from here? Cassandra Extavour (Harvard University, USA) 

09:40 - 10:05

Selected talk:

Adaptation of Caenorhabditis elegans populations to different reproductive schedules depends on interacting bacteria. Ivo Chelo (University of Lisbon, Portugal)

10:05 - 10:30

Selected talk:

Understanding genetic variation in sperm via the sperm proteome. Jayme Cohen (University of East Anglia, UK)

10:30 - 10:50

Morning break

Session 6:
ANCIENT ORIGINS OF INFERTILITY
10:50 - 11:30

The conserved genetic program of male germ cells.  Paulo Navarro-Costa (Lisbon Medical School, Portugal) 

11:30 - 11:55

Selected talk:

3D chromatin remodeling modulates evolutionary plasticity in the germ line. Peter Ellis (University of Kent, UK) 

11:55 - 12:35

Special guest talk:

Causes and consequences of centromere drive. Harmit Malik (Fred Hutchinson Cancer Research Center, USA) 

12:35 - 14:45

Lunch 

Session 7:
HOW GERM CELLS BECOME GAMETES
14:45 - 15:25

Centrioles in development and evolution: tiny organelles, multiple and critical functions. Mónica Bettencourt-Dias (Gulbenkian Science Institute, Portugal) 

15:25 - 15:50

Selected talk:

Where does DNA damage occur during mouse spermatogenesis? Frances Burden (University of Kent, UK)

15:50 - 16:10

Afternoon break

Session 8:
THE ARMS RACE FOR IMMORTALITY
16:10 - 16:50

Unusual histones mediate (epi)genetic conflicts during reproduction. Antoine Molaro (Genetic, Reproduction and Development Institute, France) 

16:50 - 17:15

Selected talk:

Safeguarding paternal chromosome identity in the fly zygote. Benjamin Loppin (ENS de Lyon, France) 

17:15 - 17:40

Selected talk:

Interspecies mouse hybrids as a model to study functional consequences of rapid centromere evolution. Piero Lamelza (University of Pennsylvania, USA)

17:40 - 19:00

Round-table discussion 

19:00 - 22:00

Dinner reception

INFERTILITY: CAN THE PAST INFORM US ABOUT THE FUTURE? July 29, 2022

Session 9:
TOUCHING FROM A DISTANCE: CELL FUSION
09:30 - 10:10

Insights on the evolution of gamete interaction from AI-ded structural biology.  Luca Jovine  (Karolinska Institute, Sweden) 

10:10 - 10:35

Selected talk:

Biochemical characterization of a protein-protein interaction mediating species-specific fertilization in abalone. Jolie Carlisle (Cornell University, USA)

10:35 - 11:00

Selected talk:

Inbreeding avoidance at the gamete level in Atlantic salmon (Salmo salar). Marco Graziano (University of East Anglia, UK)

11:00 - 11:30

Morning break

Session 10:
AN EVOLUTIONARY PERSPECTIVE ON MAKING GERM CELLS IN VITRO
11:30 - 12:10

Novel tools for the study of human spermatogenesis, and the potential options for the clinics. Jan-Bernd Stukenborg (Karolinska Institute, Sweden)

12:10 - 12:35

Selected talk:

Organoids to model gonadal development in vitro. João Pedro Alves-Lopes (Karolinska Institute, Sweden) 

12:35 - 14:00

Lunch

Session 11:
LIVE LONG OR PROSPER: GERM CELLS VS LIFESPAN
14:00 - 15:00

Live long or prosper? Reproduction, lifespan and evolutionary fitness in humans. Virpi Lummaa (University of Turku, Finland)

Session 12:
EVOLUTIONARY MEDICINE: NEW PERSPECTIVES ON THE FETAL-MATERNAL RELATIONSHIP
15:00 - 15:40

New perspectives on the fetal-maternal relationship in mammals. Günter Wagner (Yale University, USA)

15:40 - 16:05

Selected talk:

Genetic incompatibility of the reproductive partners: an evolutionary perspective on infertility. Jukka Kekalainen (University of Eastern Finland)

 

16:05 - 17:00

Final Remarks

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