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Abstract Detail

A Broader view for Plant EvoDevo: novel approaches for diverse model systems

Cronk, Quentin [1], Rudall, Paula J. [2].

Genomics and reproductive morphology of Salicaceae.

Poplars (Populus spp.) and willows (Salix spp.) are well known woody plants common throughout the northern hemisphere. Both genera have a colossal climatic range occurring from tropical forest to the boreal arctic. Closely related genera of the "salicoid clade" of the family Salicaceae include the Asian genera Bennettiodendron, Idesia, Itoa, Poliothyrsis and Carrierea and the Central American genera Olmediella and Macrohasseltia. Like willow and poplar, most of these genera are dioecious, but unlike willow and poplar they have expanded inflorescences rather than catkins, and less highly reduced flowers. The genome architecture of dioecy in Salix and Populus has been the subject of recent studies and shows a surprising amount of variability, consistent with recent ideas of "turnover" of sex chromosomes. Here we review the current state of knowledge of genomics and morphology of the group and its potential for comparative approaches to the evolution of reproductive characteristics at the molecular level. We show by anatomical study of the developing inflorescences of Carrierea, Idesia and Poliothyrsis that, despite the reduced inflorescences of Populus and Salix, there are striking similarities in reproductive morphology across the clade. The salicoid clade of the Salicaceae is therefore a promising system for genome-enabled comparative reproductive morphology.

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1 - University Of British Columbia, Botanical Garden And Centre For Plant Research, Room #3529 - 6270 University Boulevard, Vancouver, BC, V6T 1Z4, Canada
2 - Jodrell Laboratory, Royal Botanic Gardens KEW, Richmond, N/A, TW9 3DS, United Kingdom


Presentation Type: Symposium Presentation
Session: SY02
Location: Salon 11/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 11:15 AM
Number: SY02008
Abstract ID:295
Candidate for Awards:None

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