作者
Sophie Nadot, Carol A Furness, Julie Sannier, Laurent Penet, Sarah Triki‐Teurtroy, Beatrice Albert, Adrienne Ressayre
发表日期
2008/11
期刊
American Journal of Botany
卷号
95
期号
11
页码范围
1426-1436
出版商
Botanical Society of America
简介
This paper presents the first broad overview of three main features of microsporogenesis (male meiosis) in angiosperms: cytokinesis (cell division), intersporal wall formation, and tetrad form. A phylogenetic comparative approach was used to test for correlated evolution among these characters and to make hypotheses about evolutionary trends in microsporogenesis. The link between features of microsporogenesis and pollen aperture type was examined. We show that the pathway associated with successive cytokinesis (cytoplasm is partitioned after each meiotic division) is restricted to wall formation mediated by centrifugally developing cell plates, and tetragonal (or decussate, T‐shaped, linear) tetrads. Conversely, much more flexibility is observed when cytokinesis is simultaneous (two meiotic divisions completed before cytoplasmic partitioning). We suggest that the ancestral type of microsporogenesis for …
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S Nadot, CA Furness, J Sannier, L Penet… - American Journal of Botany, 2008