Abstract Detail

Systematics

Gardner, Elliot [1], Garner, Mira [2], Cowan, Robyn [3], Dodsworth, Steven [3], Epitawalage, Niroshini [3], Arifiani, Deby [4], S., Sahromi [4], Baker, William J. [3], Forest, Felix [3], Maurin, Olivier [3], Zerega, Nyree J.C. [5], Monro, Alexandre [3], Hipp, Andrew L. [2].

Multiple apparent losses of wind pollination in Moraceae revealed by phylogenomic analyses, and a corresponding generic revision of the tribe Moreae.

Many species in the mulberry family have a unique adaptation to wind pollination (also found in the allied nettle family): stamens that are inflexed under pressure in bud, suddenly flexing outward at the moment of anthesis and ballistically releasing their pollen. These taxa were traditional considered allies and were place in the tribe Moreae, but phylogenetic work over the past two decades has shown that the do not form a monophyletic group. New phylogenomic analyses have revealed that taxa with inflexed stamens appear in five out of seven tribes of the family. Ancestral state reconstruction supports inflexed stamens as the ancestral state of Moraceae, with five separate losses, likely corresponding to five losses of wind pollination in the family. This talk will discuss the implications of these results, including a generic revision of the tribe Moreae and ongoing work in the troublesome genus Streblus Lour.

1 - Singapore Botanic Gardens, 1 Cluny Road, Singapore
2 - The Morton Arboretum
3 - Royal Botanic Gardens Kew
4 - Indonesian Institute of Sciences
5 - Northwestern University / Chicago Botanic Garden

Keywords:
Moraceae
phylogenomics
HybSeq
Target Enrichment
Morus
Trophis
Streblus
pollination.

Presentation Type: Oral Paper
Session: SYS2, Systematics II: Rosids part B to Basal Asterids
Location: Virtual/Virtual
Date: Tuesday, July 28th, 2020
Time: 1:00 PM
Number: SYS2003
Abstract ID:66
Candidate for Awards:None