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Ongoing evolution in the genus Crocus: Diversity of flowering strategies on the way to hysteranthy

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Ongoing evolution in the genus Crocus: Diversity of flowering strategies on the way to hysteranthy

dc.contributor.author	Pastor-Férriz, Teresa
dc.contributor.author	De-los-Mozos-Pascual, Marcelino
dc.contributor.author	Renau-Morata, Begoña
dc.contributor.author	Nebauer, Sergio G.
dc.contributor.author	Sanchis, Enrique
dc.contributor.author	Busconi, Matteo
dc.contributor.author	Fernández, José-Antonio
dc.contributor.author	Kamenetsky, Rina
dc.contributor.author	Molina, Rosa V.
dc.date.accessioned	2021-12-03T14:26:13Z
dc.date.available	2021-12-03T14:26:13Z
dc.date.issued	2021
dc.identifier.citation	Pastor-Férriz, Teresa De-los-Mozos-Pascual, Marcelino Renau-Morata, Begoña Nebauer, Sergio G. Sanchis, Enrique Busconi, Matteo Fernández, José-Antonio Kamenetsky, Rina Molina, Rosa V. 2021 Ongoing evolution in the genus Crocus: Diversity of flowering strategies on the way to hysteranthy Plants-Basel 10 3 477
dc.identifier.uri	https://hdl.handle.net/10550/80939
dc.description.abstract	Species of the genus Crocus are found over a wide range of climatic areas. In natural habitats, these geophytes diverge in the flowering strategies. This variability was assessed by analyzing the flowering traits of the Spanish collection of wild crocuses, preserved in the Bank of Plant Germplasm of Cuenca. Plants of the seven Spanish species were analyzed both in their natural environments (58 native populations) and in common garden experiments (112 accessions). Differences among species observed in the native habitats were maintained under uniform environmental conditions, suggesting a genetic basis for flowering mechanisms. Two eco-morphological types, autumn- and spring-flowering species, share similar patterns of floral induction and differentiation period in summer. The optimal temperature for this process was 23 °C for both types. Unlike Irano-Turanian crocuses, spring-flowering Spanish species do not require low winter temperatures for flower elongation. Hysteranthous crocuses flower in autumn prior to leaf elongation. We conclude that the variability in flowering traits in crocuses is related to the genetic and environmental regulation of flower primordia differentiation and elongation prior to emergence above the soil surface. The elucidation of the physiological differences between eco-morphological types of crocuses: synanthous with cold requirements and synanthous and hysteranthous without cold requirements, unlocks a new approach to the flowering evolution of geophytes in Mediterranean regions. Crocus species can serve both as a new model in the study of the molecular basis of hysteranthy and for the purposes of developing the molecular markers for desirable flowering traits.
dc.language.iso	eng
dc.relation.ispartof	Plants-Basel, 2021, vol. 10, num. 3, p. 477
dc.subject	Flora
dc.subject	Biodiversitat
dc.title	Ongoing evolution in the genus Crocus: Diversity of flowering strategies on the way to hysteranthy
dc.type	journal article	es_ES
dc.date.updated	2021-12-03T14:26:14Z
dc.identifier.doi	10.3390/plants10030477
dc.identifier.idgrec	149252
dc.rights.accessRights	open access	es_ES