Characters of the inferior ovary of Myrteae (Myrtaceae) and their implication in the evolutionary history of the tribe
Vanessa de C. Harthman
A D , Luiz A. de Souza B and Eve J. Lucas C
A Programa de Pós Graduação em Biologia Comparada, State University of Maringá, Avenida Colombo 5790, Maringá, PR, 87020-900, Brazil.
B Department of Biology, Laboratory of Anatomy and Plant Morphology, State University of Maringá, Avenida Colombo 5790, Maringá, PR, 87020-900, Brazil.
C Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK.
D Correspondence author. Email: vanessa.harthman@gmail.com
Australian Systematic Botany 31(3) 252-261 https://doi.org/10.1071/SB17059
Submitted: 28 May 2017 Accepted: 12 June 2018 Published: 17 July 2018
Abstract
Myrtaceae is commonly known to have an inferior ovary of appendicular, receptacular or mixed origin. Other characters of the ovary, such as the number of carpels, number of locules, vascularisation pattern, number of ovules, placentation and presence of compitum have also been of interest to researchers aiming to better understand the evolutionary history of the tribe. In the present study, aspects of the structure of the inferior ovary of 21 species of Myrteae are analysed and reviewed as potential characters for better understanding the evolutionary history of Myrteae. Flower buds were embedded in historesin and paraplast and sectioned transversely and longitudinally with a rotary microtome. Results suggested that most species have an inferior ovary of appendicular origin and that a compitum, or compitum tissue, is present in all species analysed, differing only in the degree of development. Number of carpels and locules vary, with most species having two locules. Vascular supply is transeptal and axial, the latter being the most common condition in the investigated species. Data presented here enhance current evolutionary understanding of the tribe and its history. Results indicated that the inferior ovary of ancestral Myrteae may has had an appendicular origin, that the presence and nature of the compitum may have a positive effect on fertilisation efficiency and a relationship with number of ovules and that transepetal vascular supply may be taxonomically useful to define large groups such as Pimenta and Eugenia.
Additional keywords: anatomy, compitum, gynoecium, vascularisation.
References
Armbruster WS, Debevec EM, Willson MF (2002) Evolution of syncarpy in angiosperms: theoretical and phylogenetic analyses of the effects of carpel fusion on offspring quantity and quality. Journal of Evolutionary Biology 15, 657–672.| Evolution of syncarpy in angiosperms: theoretical and phylogenetic analyses of the effects of carpel fusion on offspring quantity and quality.Crossref | GoogleScholarGoogle Scholar |
Carr SGM, Carr DJ (1961) The functional significance of syncarpy. Phytomorphology 11, 249–256.
Conti E, Litt A, Wilson PG, Graham SA, Briggs BG, Johnson LAS, Sytsma KJ (1997) Interfamiliar relationships in Myrtales: molecular phylogeny and patters of morphological evolution. Systematic Botany 22, 629–647.
| Interfamiliar relationships in Myrtales: molecular phylogeny and patters of morphological evolution.Crossref | GoogleScholarGoogle Scholar |
Douglas GE (1944) The inferior ovary. Botanical Review 10, 125–186.
| The inferior ovary.Crossref | GoogleScholarGoogle Scholar |
Douglas GE (1957) The inferior ovary II. Botanical Review 23, 1–46.
| The inferior ovary II.Crossref | GoogleScholarGoogle Scholar |
Du W, Wang X-F (2012) Intercarpellary growth of pollen tubes in the extragynoecial compitum and its contribution to fruit set in an apocarpous species Schisandra sphenanthera (Schisandraceae). American Journal of Botany 99, 961–966.
| Intercarpellary growth of pollen tubes in the extragynoecial compitum and its contribution to fruit set in an apocarpous species Schisandra sphenanthera (Schisandraceae).Crossref | GoogleScholarGoogle Scholar |
Endress PK (1982) Syncarpy and alternative modes of escaping disadvantages of apocarpy in primitive angiosperms. Taxon 31, 48–52.
| Syncarpy and alternative modes of escaping disadvantages of apocarpy in primitive angiosperms.Crossref | GoogleScholarGoogle Scholar |
Endress PK (1994) ‘Diversity and Evolutionary Biology of Tropical Flowers.’ (Cambridge University Press: Cambridge, UK)
Endress PK (2011) Evolutionary diversification of the flowers in angiosperms. American Journal of Botany 98, 370–396.
| Evolutionary diversification of the flowers in angiosperms.Crossref | GoogleScholarGoogle Scholar |
Gerrits PO, Horobin RW (1991) The application of glycol methacrylate in histotechnology; some fundamental principles. Department of Anatomy and Embryology, Faculteit der Geneeskunde, Rijksuniversiteit, Groningen, Netherlands.
Johansen DA (1940) ‘Plant Microtechnique.’ (McGraw-Hill: New York, NY, USA)
Kaplan DR (1967) Floral morphology, organogenesis and interpretation of the inferior ovary in Downingia bacigalupii. American Journal of Botany 54, 1274–1290.
| Floral morphology, organogenesis and interpretation of the inferior ovary in Downingia bacigalupii.Crossref | GoogleScholarGoogle Scholar |
Khalifa SF, Kamel WM, Gazan MH, El-Banhawy AH (2009) Variabilities in the vascularization of the inferior ovary of certain dicotyledonous species. Assiut University Journal of Botany 38, 41–79.
Lucas EJ, Bünger MO (2015) Myrtaceae in the Atlantic forest: their role as a model group. Biodiversity and Conservation 24, 2165–2180.
| Myrtaceae in the Atlantic forest: their role as a model group.Crossref | GoogleScholarGoogle Scholar |
Lucas EJ, Belsham SR, Nic Lughadha EM, Orlovich DA, Sakuragui CM, Chase MW, Wilson PG (2005) Phylogenetic patterns in the fleshy-fruited Myrtaceae: preliminary molecular evidence. Plant Systematics and Evolution 251, 35–51.
| Phylogenetic patterns in the fleshy-fruited Myrtaceae: preliminary molecular evidence.Crossref | GoogleScholarGoogle Scholar |
Lucas EJ, Belsham SR, Nic Lughadha M, Orlovich DA, Sakuragui CM, Chase MW, Harris SA, Mazine FF, Belsham SR, Nic Lughadha EM, Telford A, Gasson PE, Chase MW (2007) Suprageneric phylogenetics of Myrteae, the generically richest tribe in Myrtaceae (Myrtales). Taxon 56, 1105–1128.
| Suprageneric phylogenetics of Myrteae, the generically richest tribe in Myrtaceae (Myrtales).Crossref | GoogleScholarGoogle Scholar |
O’Brien TP, Feder N, McCully ME (1964) Polychromatic staining of plant cell walls by toluidine blue O. Protoplasma 59, 368–373.
| Polychromatic staining of plant cell walls by toluidine blue O.Crossref | GoogleScholarGoogle Scholar |
Pimentel RR, Barreira NP, Spala DP, Cardim NB, Souza MC, Sá-Haiad B, Machado SR, Rocha JF, Santiago-Fernandes LDR (2014) Development and evolution of the gynoecium in Myrteae (Myrtaceae). Australian Journal of Botany 62, 335–346.
Prychid CJ, Bruhl JJ (2013) Floral ontogeny and gene protein localization rules outeuanthial interpretation of reproductive units in (Cyperaceae, Mapanioideae, Chrysitricheae). Annals of Botany 112, 161–177.
| Floral ontogeny and gene protein localization rules outeuanthial interpretation of reproductive units in (Cyperaceae, Mapanioideae, Chrysitricheae).Crossref | GoogleScholarGoogle Scholar |
Puri V (1951) The role of floral anatomy in the solution of morphological problem. Botanical Review 17, 471–553.
| The role of floral anatomy in the solution of morphological problem.Crossref | GoogleScholarGoogle Scholar |
Puri V (1952) Placentation in angiosperms. Botanical Review 18, 603–651.
| Placentation in angiosperms.Crossref | GoogleScholarGoogle Scholar |
Roth I (1977) Fruits of angiosperms. In ‘Encyclopedia of Plant Anatomy’. (Eds K Linsbauer, FG Tischler, A Pascher) pp. 100–106. (Gebrüder Borntraeger: Berlin, Germany)
Schmid R (1972a) Floral anatomy of Myrtaceae. I. Syzygium. Botanische Jahrbücherfür Systematik 92, 433–489.
Schmid R (1972b) Floral anatomy of Myrtaceae. II. Eugenia. Journal of the Arnold Arboretum 53, 336–363.
Schmid R (1972c) A resolution of the Eugenia–Syzygium controversy (Myrtaceae). American Journal of Botany 59, 423–436.
| A resolution of the Eugenia–Syzygium controversy (Myrtaceae).Crossref | GoogleScholarGoogle Scholar |
Smith FH, Smith EC (1942) Anatomy of the inferior ovary of Darbya. American Journal of Botany 29, 464–471.
| Anatomy of the inferior ovary of Darbya.Crossref | GoogleScholarGoogle Scholar |
Tantawy ME (2004) Morpho-anatomical study on certain taxa of Myrtaceae. Asian Journal of Plant Sciences 3, 274–285.
| Morpho-anatomical study on certain taxa of Myrtaceae.Crossref | GoogleScholarGoogle Scholar |
Vasconcelos TNC, Prenner G, Bünger MO, De-Carvalho PS, Wingler A, Lucas EJ (2015) Systematic and evolutionary implications of stamen position in Myrteae (Myrtaceae). Botanical Journal of the Linnean Society 179, 388–402.
| Systematic and evolutionary implications of stamen position in Myrteae (Myrtaceae).Crossref | GoogleScholarGoogle Scholar |
Wilson PG (2011) Myrtaceae. In ‘The Families and Genera of Vascular Plants. Vol. 10. Flowering Plants. Eudicots: Sapindales, Cucurbitales, Myrtaceae’. (Ed. K Kubitzki) pp. 212–271. (Springer Verlag: Heidelberg, Germany)
