CIE Seminar Series 2018: Mitochondria, life-histories, and the evolution of sex differences

SPEAKER: Assoc. Professor Damian Dowling, School of Biological Sciences, Monash University

DATE: Friday, 18th May 2018

TIME: 1:30pm

LOCATION:  Geelong Campus at Waurn Ponds – room ka4.207 (green room)

Seminar will also be video linked to the following campuses: Melbourne Campus at Burwood –Burwood Corporate Centre; and Warrnambool Campus, Room J2.19 (fishbowl)

External visitors – wish to join us and connect to our seminars?
External parties may connect to the live seminar via *N SEBE VMP LES Seminars 52236958@deakin.edu.au [ID.36958] via the methods listed below:

  • For external guests, you can connect as a web guest by clicking HERE. If using Chrome you it will prompt you to install the Cisco Jaba Plugin, then it will prompt you to download the extension which you will need to install. Once this has been installed, you will have a black screen with a call button. You will just need to click call and it should connect into the VMP.
  • For Deakin staff and students, please join via Skype for Business (Lync) – if you have office installed you may already have Skype for business or Lync installed. You just need to look for it on the start menu. If you find it, you can log into skype using your Deakin email and password and then dial 36958.
  • Could not log in? More info on how to connect is available HERE or HERE.
  • Please note that connection is only available while a seminar is taking place.

As a courtesy, we request that when connecting to the seminar that you mute your microphone unless you are required to speak, this would ensure that the sound from the speaker to the audience is not disrupted by feedback from your microphone – thank you!

ABSTRACT. In my research group, we are interested in the contribution mitochondrial genomes make to the evolution of life-histories. There are strong theoretical reasons to believe that mtDNA sequences will accumulate functional genetic variation (i.e. genetic variation that changes the phenotype) under both non-adaptive and adaptive processes. Furthermore, maternal inheritance of the mitochondria should hypothetically render mitochondrial genomes prone to the accumulation of sex-specific variation, via alleles that are benign or advantageous to females, but outright harmful to males. This has beencalled the “Mother’s Curse” effect. In this seminar, I will present studies from my group that suggest mutation accumulation and adaptation both play a role in shaping patterns of mitochondrial sequence variation. I will present experimental support the Mother’s Curse effect, including evidence that mitochondrial haplotypes are sexually antagonistic (haplotypes that are good for females are bad for males). I will discuss the implications of our findings for our understanding of key biological concepts, including the evolution of sex differences, adaptation under sexually antagonistic selection, and the capacity of our native flora and fauna to cope with ever increasing climatic stress.

BIO. Damian Dowling is an Associate Professor and ARC Future Fellow, at the School of Biological Sciences at Monash University. He completed his PhD studies in 2004 at the University of Melbourne, before embarking on postdoctoral research at Uppsala University in Sweden, working with Professor Göran Arnqvist, and then the University of Western Australia, with Professor Leigh Simmons. In 2009, he was awarded a Monash University Research Fellowship, and moved back to Melbourne. In 2010 he was awarded an ARC Australian Research Fellowship, and then a Future Fellowship commencing in 2017. Damian is the theme leader for Evolution, and has taken on the role of Director of Research, in the School of Biological Sciences. He is an evolutionary ecologist by training, who is broadly interested in adaptation under sexual selection and sexual conflict, and the evolution of ageing. In recent years, he has been fascinated by the possibility that the mitochondria might play a role in mediating these processes.

For more info: http://www.damiandowlinglab.com/

Appointments with guest speaker may be made via ondi.crino@deakin.edu.au.