2021
DOI: 10.1086/713918
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Evolution and Development of Staminodes in Paronychia (Caryophyllaceae)

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Cited by 5 publications
(9 citation statements)
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“…Instead, we determined that the second instance of staminode evolution in carpellate flowers involved a completely different developmental pathway, in which anthers first develop, are then arrested, and at no point are filaments initiated. This developmental pathway differs from that of staminodes in alternisepalous positions because anthers never initiated and the staminodes developed relatively later and correspond with filaments of fertile stamens through heterochronic change (Wei and Ronse De Craene, 2019; Appleton and Schenk, 2021). Staminodes are homologous with one another as members of the androecium as serialogous (=serially homologous) stamens, but at the level of staminodes, those in alternisepalous and antesepalous positions in carpellate flowers are not homologous (are paralogous sensu Ochoterena et al, 2019) to one another because of their structural and developmental differences and that they have evolved independently of one another.…”
Section: Discussionmentioning
confidence: 99%
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“…Instead, we determined that the second instance of staminode evolution in carpellate flowers involved a completely different developmental pathway, in which anthers first develop, are then arrested, and at no point are filaments initiated. This developmental pathway differs from that of staminodes in alternisepalous positions because anthers never initiated and the staminodes developed relatively later and correspond with filaments of fertile stamens through heterochronic change (Wei and Ronse De Craene, 2019; Appleton and Schenk, 2021). Staminodes are homologous with one another as members of the androecium as serialogous (=serially homologous) stamens, but at the level of staminodes, those in alternisepalous and antesepalous positions in carpellate flowers are not homologous (are paralogous sensu Ochoterena et al, 2019) to one another because of their structural and developmental differences and that they have evolved independently of one another.…”
Section: Discussionmentioning
confidence: 99%
“…We do not know the selective forces that favored the evolution of the plesiomorphic staminodes in Paronychia . Appleton and Schenk (2021) advanced the vestigial intermediate hypothesis as an evolutionary pathway in Paronychia in which vestigial staminodes first evolve and then are later co‐opted for a secondary function, lost, or remain vestigial. The authors postulated that selection for reduced flower size, perhaps associated with ruderal, low‐nutrient habitats, favored the sterilization of the alternisepalous whorl because flowers would become reduced without becoming sterile by retaining the antesepalous whorl of stamens (Guerrant, 1990; Galen, 1999).…”
Section: Discussionmentioning
confidence: 99%
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