Abstract Detail

Molecular Ecology

Moeglein, Morgan [1], Dion, Kirstin [2], Park, Brian [3], Cacho, N. Ivalu [4], Olson, Mark [5], Eaton, Deren [6], Donoghue, Michael [7], Edwards, Erika J. [8].

Genomic Architecture and Trait Availability of Leaf Syndromes in Viburnum (Adoxaceae).

Plants have evolved extensive leaf trait diversity and identifying the genetic basis of these traits expands our understanding of how and why leaf trait variation is expressed. Convergent evolution for leaf trait syndromes in Viburnum provides an opportunity to further investigate the genetic architecture of leaf trait evolution in naturally occurring populations of long-lived woody plants. In this study, we identify a hybrid swarm containing genetically admixed and phenotypically variable individuals suitable for trait association mapping. Hybrid swarm phenotypes demonstrated parental, intermediate, and divergent combinations of leaf traits, suggesting that traits comprising leaf syndromes can be physically and genetically dissociated. We also found variable genetic architecture for leaf traits, with many marker loci associated with blade size, a smaller partially overlapping set of markers associated with marginal teeth, and a completely separate set of markers associated with trichome characters. It suggests that leaf trait syndromes in Viburnum can be disaggregated but may be maintained by selection given that they are often found in concert.

1 - 44 Haverford Street, Boston, MA, 02130, United States
2 - Yale University, Ecology and Evolutionary Biology, 165 Prospect Street, New Haven, CT, 06511, USA
3 - University of Georgia, Plant Biology, 120 Carlton Street, Athens, GA, 30602, USA
4 - Instituto De Biologia, UNAM, Botanica, 3er Circuito de Ciudad Universitaria s/n UNAM, Coyoacan, CDMX, DF, 04510, Mexico
5 - Instituto De Biología, Universidad Nacional Autónoma De México, Tercer Circuito S/n De Ciudad Universitaria, Tercer Circuito S/n De Ciudad Universitaria, Ciudad De México, DIF, 04510, Mexico
6 - Columbia University, Ecology, Evolution, And Environmental Biology, 1200 Amsterdam Ave. , Schermerhorn Ext. Office 1007, New York, NY, 10027, United States
7 - Yale University, Department Of Ecology And Evolutionary Biology, 21 Sachem St., New Haven, CT, 06511, United States
8 - Yale University, Department Of Ecology And Evolutionary Biology, 165 Prospect St, New Haven, CT, 06511, United States

Keywords:
none specified

Presentation Type: Oral Paper
Session: ME1, Molecular Ecology
Location: /
Date: Tuesday, July 20th, 2021
Time: 3:15 PM(EDT)
Number: ME1002
Abstract ID:248
Candidate for Awards:None