Evolutionary and ecological genomics of polyploidy in plants: temporal dynamics across scales of biological organization from molecules to ecosystems
One of the most important realizations of the genomics era is that whole genome duplication, resulting from polyploidy, is a central mechanism of biological diversification in plants, leading to adaptation and speciation. We now understand that all modern plant lineages have genomes that derive from one or more ancient as well as more recent cycles of polyploidy, each followed by a diverse spectrum of ecological and evolutionary processes that lead to the generation of new clades and novel adaptations. Accompanying the growth in our understanding of the importance of polyploidy has been a parallel appreciation of its relevance to multiple disciplines and from multiple scales of biological organization. Polyploidy now is an important topic in agronomy, due to the prevalence of whole genome doubling in crops. Similarly, from an ecological perspective, polyploidy is an important topic in invasion biology.
A key challenge in recent years and into the future has been the need to understand the molecular, genomic, and other ‘omics’ connections that underlie adaptation and novel phenotypes, that is, the genotype-to-phenotype connection. Thus, the last couple of decades have witnessed explosive growth in probing the molecular genetic consequences of whole genome doubling in contemporary species. Additional mysteries have arisen from “looking backward” through evolutionary time (e.g. why and how duplicated genomes return to “diploid” state, degrees and patterns of genome fractionation, short term and long-term adaptive consequences of these processes…). We plan to convene global leaders and key scientists from across various biological perspectives, from the molecular to ecological levels. The Conference will focus on major findings and emerging questions regarding polyploids at time scales ranging from millions of years to contemporary processes, and across the full breadth of biological scale, from the molecular to the community level. Topics will be covered through four sessions: (1) Evolutionary dynamics of polyploid genomes (2) How plants adapt to genome doubling (3) Genetic and epigenetic processes shaping the regulation of duplicated genomes (4) Ecological consequences of polyploidy
Chairperson
Malika AINOUCHE
Université de Rennes UMR ECOBIO, Bat 14A Campus de Beaulieu, 35042 Rennes, France
Phone : +33223236789
E-mail : malika.ainouche@univ-rennes.fr
Vice-chairperson
Jonathan Wendel
Iowa State University Ecology, Evolution, and Organismal Biology, EEOB Department, Bessey Hall, Osborn Drive, 50011 Ames, États-Unis
Phone : +15152947172
E-mail : jfw@iastate.edu
(provisional titles)
BARKER Michael (Department of Ecology & Evolutionary Biology, University of Arizona, USA)
Diploidization, polyploidy, and the evolution of plant diversity
BONNEMA Guusje (Department of Plant Sciences, University of Wageningen, Netherlands)
Contribution of homoeologous exchange and interploidy introgression to domestication of polyploid Brassica
CASACUBERTA Josep (Center for Research in Agricultural Genomics, Barcelona, Spain)
LTR-retrotransposon dynamics during the recent evolution of cotton
CHOULET Frédéric (INRAE Site de Crouël, Clermont-Ferrand, France)
Dynamics of transposable elements in hexaploid wheat and wild relatives
CONOVER Justin (Molecular and Cellular Biology Department, University of Arizona, Tucson, USA)
Population genomics of deleterious mutations across the autopolyploid-allopolyploid spectrum
D’HONT Angélique (CIRAD, Montpellier, France)
Genome sequencing reveals a complex history of admixture during sugarcane domestication and cultivar diversification
GLEMIN Sylvain (CNRS UMR Ecobio, Université de Rennes, France)
Ploidy levels, mating system and competitive ability: examples from Capsella
HU Guanjing (Agricultural Genomics Institute at Shenzhen, China)
Dynamics of duplicated gene regulatory networks governing cotton development and stress tolerance
KOLAR Filip (Department of Botany, Faculty of Science Charles University, Praha, Czech Republic)
Adaptation in natural autopolyploid populations
KOVARICK Ales (Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czech Republic)
Odd ploidy in Rosa canina: a unique lens on chromosome pairing and plant evolution
LASCOUX Martin (Uppsala University, Sweden)
The role of hybridization and genome doubling in the evolution of an allotetraploid weed
LEITCH Andrew (Queen Mary University of London, England)
Genome downsizing after polyploidy: mechanisms, rates and selection pressures
LEITCH Ilia (Royal Botanic Gardens Kew, England)
The impact of polyploidy on genome size evolution
MANDAKOVA Terezie (Mazaryk University, Brno, Czech Republic)
Mesopolyploidy and Post-Polyploid Diploidization in Brassicaceae
MASON Annaliese (INRES, Pflanzenzüchtung Bonn, Germany)
Synthetic Brassica hybrids provide insight into meiotic stabilisation in polyploids
NOVIKOVA Polina (Max Planck Institute for Plant Breeding Research, Köln, Germany)
Pattern and process in polyploid establishment
PARISOD Christian (Département de Biologie, Université de Fribourg, Switzerland)
Whole-genome duplication and ecological radiation
ROUSSEAU-GUEUTIN Mathieu (IGEPP, INRAE, Le Rheu, France)
Speciation success of polyploid plants closely relates to their formation pathways and the regulation of meiotic recombination
SALMON Armel (UMR CNRS Ecobio, Université de Rennes, France)
From classical plant cytogenetics to the post-genomic era: Ploidy levels and genome history revisited in Sporobolus (Poaceae)
SERRA Heïdi (Institut de Génétique, Reproduction et Développement, CNRS/ INSERM/Université Clermont Auvergne, Clermont-Ferrand, France)
Meiotic adaptation to allopolyploidy
SOLTIS Pamela (Florida Museum of Natural History, USA)
Polyploidy and rapid changes: lessons from recently formed natural polyploids
VAN DE PEER Yves (VIB UGent Center for Plant Systems Biology, Belgium)
The duplication of genomes and its potential for evolutionary adaptation and survival during environmental turmoil
VEKEMANS Xavier (Université de Lille, Villeneuve d’Ascq, France)
Plant self-incompatibility systems, mating system evolution, and the success of polyploid lineages
WINCKER Patrick (Genoscope, Evry, France)
Comparative genomics of polyploid photosynthetic organisms
Notification of acceptance or rejection for the submitted paper will be intimated within 15 working days of abstract submission deadline. If your abstract is accepted, you will receive a confirmation e-mail with instructions for joining the meeting.