Mimosoideae

Hegnauer, Robert

doi:10.1007/978-3-0348-9175-2_3

Cited by 1 publication

(1 citation statement)

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“…Species with phenolic idioblasts at the anther apex, such as those of Alexa and Monopterx , are ornithophilous [ 27 ] and entomophilous [ 45 ], respectively. There are also reports of sphingophily [ 46 , 47 ] and chiropterophily [ 48 ] for Alexa . The lack of information on the pollination biology for these species makes it difficult to understand the function of these glands in early-diverging papilionoids.…”

Section: Discussionmentioning

confidence: 99%

Evolution of the Anther Gland in Early-Branching Papilionoids (ADA Clade, Papilionoideae, Leguminosae)

Leite

Teixeira

Sartori

et al. 2022

Plants

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Papilionoideae is the most diverse subfamily of Leguminosae, especially in terms of floral morphology. The ADA clade shows some exciting floral features among papilionoids, such as anther glands. However, the evolution of the anther glands in such early-branching papilionoids remains unknown. Thus, we compared the occurrence, distribution, morphology, and evolutionary history of the anther glands in species of the ADA clade. Floral buds and/or flowers in 50 species were collected from herbarium specimens and investigated using scanning electron and light microscopy and reconstruction of ancestral character states. The anther apex has a secretory cavity, secretory duct, and phenolic idioblast. The lumen shape of the cavity and duct is closely related to the shape of the anther apex. The oval lumen is located between two thecae, the spherical lumen in the prominent anther apex and the elongated lumen in anthers with a long apex. The occurrence of cavities/ducts in the anther in only two phylogenetically closely related subclades is a unifying character -state. The floral architecture is not correlated with cavity/ducts in the anther but is possibly related to the type of pollinator. Future research needs to combine floral morphology and pollination systems to understand the evolution of floral designs and their diversification.

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Section: Discussionmentioning

confidence: 99%