| Full text | |
| Author(s): |
Leite, Viviane Goncalves
[1, 2, 3]
;
Kjellberg, Finn
[4]
;
Santinelo Pereira, Rodrigo Augusto
[1]
;
Teixeira, Simone Padua
[2]
Total Authors: 4
|
| Affiliation: | [1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Biol, Av Bandeirantes 3900, BR-14040901 Ribeirao Preto, SP - Brazil
[2] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Ciencias Farmaceut, Av Cafe S-N, BR-14040903 Ribeirao Preto - Brazil
[3] DIPEQ, Inst Pesquisa Jardim Bot Rio Janeiro, Rua Pacheco Leao 915, BR-22460030 Rio De Janeiro, RJ - Brazil
[4] Univ Paul Valery Montpellier, Univ Montpellier, CEFE, EPHE, 1919 Route Mende, F-34293 Montpellier 5 - France
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | ANNALS OF BOTANY; v. 127, n. 5, p. 621-631, APR 9 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Background and Aims Moraceae, the family of mulberry and fig trees, displays small homogeneous flowers but extremely diverse inflorescences ranging from simple and branched to complex and condensed. Inflorescences also vary in flower organization in the receptacle, in the degree of flower condensation and in receptacle shape. Thus, the objective of the present study was to compare the inflorescence morphogenesis of Moraceae species, to investigate whether clades with a similar pollination mode share the same patterns of inflorescence development and the developmental stages at which we observe the key changes resulting in the diversified inflorescence architecture that culminates in the Ficus syconium. Methods Inflorescences at different developmental stages were sampled from Brosimum gaudichaudii, Castilla elastica, Clarisia ilicifolia, Ficus pertusa, Maclura tinctoria and Morus nigra and processed for surface and anatomical analyses. Key Results The inflorescence morphogenesis of the studied species is highly variable. The shape of the inflorescence meristem (bulging, hemispheric or elongated), the initiation order and arrangement of flowers along the receptacle and the occurrence of bracts vary between related species. This diversity originates early during inflorescence development. Brosimum gaudichaudii, C. elastica and F. pertusa have flowers enclosed or immersed within the receptacle, although inflorescences begin their development as flat and open structures, as occurs in the other three study species. Conclusion Comparison of the inflorescence morphogenesis in Moraceae species allows us to infer that evolutionary ontogenetic changes driven by pollinators culminate in the enclosure of flowers inside the receptacle, as occurs in the Ficus syconium. (AU) | |
| FAPESP's process: | 14/07453-3 - Floral development of urticalean rosids |
| Grantee: | Simone de Pádua Teixeira |
| Support Opportunities: | Regular Research Grants |