Comparative embryology of xyrids (Poales-Monocotyledons)

• Grant number: 11/11536-3
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: December 01, 2011
• End date: March 31, 2015
• Field of knowledge: Biological Sciences - Botany - Plant Morphology
• Principal Investigator: Vera Lucia Scatena
• Grantee: Aline Oriani
• Host Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil

Abstract

Poales is a representative order including one third of monocotyledon species. The xyrid clade includes Xyridaceae, Eriocaulaceae and Mayacaceae and is weakly supported. Floral anatomy studies show that Eriocaulaceae and Xyridaceae share several homologies not present in Mayacaceae. In the infra-familiar level, Xyridaceae is the most problematic family and its monophyly requires testing. The anatomical characteristics of flower and vegetative organs of Xyris contrast with those of Abolboda and Orectanthe, supporting the division of the family into two subfamilies. Since the inter and infra-familiar relationships in Xyridaceae are not yet well established, this project aims to study the embryology and seed development of Xyridaceae species to assess characters with taxonomic value. The results will be compared with those of Eriocaulaceae and Mayacaceae available in the literature to contribute to the understanding of the relationships within the xyrids.

Scientific publications

(14)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DALTIN, ANGELA L.; ORIANI, ALINE; SCATENA, VERA L.. Leaf and inflorescence axis anatomy of Brazilian species of Rapateoideae (Rapateaceae, Poales). Anais da Academia Brasileira de Ciências, v. 87, n. 1, p. 157-171, MAR 2015. (11/18275-0, 11/11536-3)

SAJO, M. GRACA; ORIANI, ALINE; SCATENA, VERA L.; RUDALL, PAULA J.. Floral ontogeny and vasculature in Xyridaceae, with particular reference to staminodes and stylar appendages. PLANT SYSTEMATICS AND EVOLUTION, v. 303, n. 9, p. 1293-1310, NOV 2017. (11/11536-3)

ORIANI, ALINE; SCATENA, VERA L.. OVULE, FRUIT, AND SEED DEVELOPMENT OF ORECTANTHE SCEPTRUM AND ITS SYSTEMATIC RELEVANCE TO XYRIDACEAE (POALES). INTERNATIONAL JOURNAL OF PLANT SCIENCES, v. 178, n. 2, p. 104-116, FEB 1 2017. (11/11536-3)

ORIANI, ALINE; SCATENA, VERA L.. ANTHER WALL DEVELOPMENT, MICROSPOROGENESIS, AND MICROGAMETOGENESIS IN ABOLBODA AND ORECTANTHE: CONTRIBUTIONS TO THE EMBRYOLOGY OF XYRIDACEAE (POALES). INTERNATIONAL JOURNAL OF PLANT SCIENCES, v. 176, n. 4, p. 324-332, MAY 2015. (11/18275-0, 11/11536-3)

MONTEIRO, MARIANA MACIEL; SCATENA, VERA LUCIA; ORIANI, ALINE. Anatomy and development of the reproductive units of Mapania pycnostachya and Hypolytrum schraderianum (Mapanioideae, Cyperaceae). Australian Journal of Botany, v. 64, n. 5, p. 389-400, 2016. (11/11536-3)

MONTEIRO, MARIANA M.; SCATENA, VERA L.; ORIANI, ALINE. Comparative floral anatomy of Rhynchospora consanguinea and Rhynchospora pubera (Cyperoideae, Cyperaceae). PLANT SYSTEMATICS AND EVOLUTION, v. 303, n. 3, p. 283-297, MAR 2017. (11/11536-3)

GONZAGA DE OLIVEIRA, FERNANDA MARTINS; ORIANI, ALINE. Anatomical characterization of vegetative organs and scapes of Rondonanthus (Eriocaulaceae, Poales). BRAZILIAN JOURNAL OF BOTANY, v. 39, n. 4, p. 1103-1115, DEC 2016. (11/11536-3, 13/00383-7)

NARDI, KAIRE DE OLIVEIRA; ORIANI, ALINE; SCATENA, VERA LUCIA. Seed micromorphology and its taxonomic significance to Xyris (Xyridaceae, Poales). BRAZILIAN JOURNAL OF BOTANY, v. 39, n. 2, p. 721-727, JUN 2016. (11/11536-3)

ORIANI, ALINE; SCATENA, VERA L.. Ovule, fruit and seed development in Abolboda (Xyridaceae, Poales): implications for taxonomy and phylogeny. Botanical Journal of the Linnean Society, v. 175, n. 1, p. 144-154, MAY 2014. (11/18275-0, 11/11536-3)

GONZAGA DE OLIVEIRA, FERNANDA MARTINS; SCATENA, VERA LUCIA; ORIANI, ALINE. Anatomy of vegetative organs and inflorescence axis of Orectanthe sceptrum (Xyridaceae-Poales). JOURNAL OF THE TORREY BOTANICAL SOCIETY, v. 142, n. 3, p. 258-268, JUL 2015. (13/00383-7, 11/11536-3)

FERRARI, RENATA CALLEGARI; SCATENA, VERA LUCIA; ORIANI, ALINE. Leaf and inflorescence peduncle anatomy: a contribution to the taxonomy of Rapateaceae. PLANT SYSTEMATICS AND EVOLUTION, v. 300, n. 7, p. 1579-1590, AUG 2014. (11/18275-0, 11/11536-3)

NARDI, KAIRE DE OLIVEIRA; SCATENA, VERA L.; ORIANI, ALINE. Development of ovule, fruit and seed of Xyris (Xyridaceae, Poales) and taxonomic considerations. Botanical Journal of the Linnean Society, v. 177, n. 4, p. 619-628, APR 2015. (11/11536-3)

NARDI, KAIRE DE OLIVEIRA; ORIANI, ALINE; SCATENA, VERA LUCIA. Seed micromorphology and its taxonomic significance to Xyris (Xyridaceae, Poales). Rev. bras. Bot., v. 39, n. 2, p. 7-pg., 2016-06-01. (11/11536-3)

GONZAGA DE OLIVEIRA, FERNANDA MARTINS; ORIANI, ALINE. Anatomical characterization of vegetative organs and scapes of Rondonanthus (Eriocaulaceae, Poales). Rev. bras. Bot., v. 39, n. 4, p. 13-pg., 2016-12-01. (13/00383-7, 11/11536-3)