Abstract Detail

A synthesis of new paleontological and phylogenomic perspectives on gymnosperm evolution

Crisp, Michael [1], Cook, Lyn [2], Bowman, David [3], Prior, Lynda [3], Cosgrove, Meredith [4], Isagi, Yuji [5], Sakaguchi, Shota [6].

Callitris: a molecular phylogenetic chronicle of extinction, survival, dispersal and rediversification.

Callitris belongs to one of the three most diverse extant conifer families (Cupressaceae) and currently is the most species-rich conifer genus in Australia. And a 30-Myr-old fossil trove in north-west Tasmania has more conifer species (living or fossil) than found at any other site on Earth. Yet, between then and now, conifers have undergone massive extinction and re-diversification. Callitris is the only conifer genus that successfully made the transition from rainforest into dry, fire-prone communities across Australia, as climate changed through the Neogene. This presentation will relate our ongoing research on the molecular phylogeny, evolutionary history and biogeography of this fascinating group of trees.

1 - The Australian National University, Research School Of Biology, 46 Sullivans Creek Rd, Acton, ACT, 2601, Australia
2 - The University of Queensland, School of Biological Sciences, Brisbane, QLD, 4072, Australia
3 - The University of Tasmania, School of Plant Science, Hobart, Tasmania, Australia
4 - The Australian National University, Research School Of Biology, Acton, ACT, 2601, Australia
5 - Graduate School Of Agriculture, Kitashirakawa Oiwake-Cho, Sakyo-ku, Kyoto, Kyoto Prefecture, 606-8502, Japan
6 - Kyoto University, Graduate School of Human and Environmental Studies, Kyoto, Japan

Keywords:
conifer
Cupressaceae
Callitris
fossils
serotiny
Biogeography.

Presentation Type: Colloquium Presentations
Session: C04, A synthesis of new paleontological and phylogenomic perspectives on gymnosperm evolution
Location: 102/Mayo Civic Center
Date: Monday, July 23rd, 2018
Time: 4:30 PM
Number: C04012
Abstract ID:180
Candidate for Awards:None