Ontogeny, variation and evolution of inflorescence in tribe Fabeae (Fabaceae) with special reference to genera Lathyrus, Pisum and Vaviloviaстатья

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Дата последнего поиска статьи во внешних источниках: 10 июня 2015 г.

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[1] Sinjushin A. A., Belyakova A. S. Ontogeny, variation and evolution of inflorescence in tribe fabeae (fabaceae) with special reference to genera lathyrus, pisum and vavilovia // Flora. — 2015. — Vol. 211. — P. 11–17. The present study reports the inflorescence ontogeny and morphology in tribe Fabeae (Fabaceae) addressing the evolutionary trends of selected inflorescence features in clade Lathyrus-Pisum-Vavilovia. In all three mentioned genera, the whole inflorescence in annual taxa comprises an open shoot bearing frondose leaves subtended by simple racemes. This shoot exhibits a pendulum symmetry which results from skewed position of leaves initiating at shoot apex. During floral initiation in a model species, i.e. Vicia cracca, numerous flowers are produced on these racemes but later most of them degrade and only a small portion (< 4%) of previously initiated flowers result in production of mature fruits. This many-flowered state is derived from a single- or few-flowered one typical for the most basal representatives of this clade. The single-flowered state strongly correlates with annual life form and arises repeatedly during evolution of tribe Fabeae. The adaptive values of different inflorescence types are discussed. [ DOI ]

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