Systematic of Amazonian Pachira clade (Bombacoideae, Malvaceae) focusing on Brazilian species

• Grant number: 19/27132-0
• Support Opportunities: Regular Research Grants
• Start date: December 01, 2020
• End date: May 31, 2023
• Field of knowledge: Biological Sciences - Botany - Plant Taxonomy
• Principal Investigator: Marília Cristina Duarte
• Grantee: Marília Cristina Duarte
• Host Institution: Pró-Reitoria Acadêmica. Universidade de Mogi das Cruzes (UMC). Campus da Sede Mogi das Cruzes. Mogi das Cruzes , SP, Brazil
• Associated researchers: Alexandre Wagner Silva Hilsdorf ; Vania Nobuko Yoshikawa

Abstract

Pachira Aubl. is the largest genus of Bombacoideae and it is represented by about 55 species, occurring in Southern North America to South America. In Brazil the Amazonian Pachira clade includes about 23 species, with 14 endemic of Brazilian Amazonian Biome, and it is poorly represented on herbaria collections. On phylogenetic approaches, the Amazonian Pachira clade belongs to Pachira s.l. clade emerging as sister with Pachira Extra-Amazonian clade and Eriotheca Schott & Endl. Thus, this work will aim to investigate the relationships of Amazonian Pachira clade using a major number of species on phylogenetic analysis, since no other works used this genus in your totality and only eleven species are employed in this analysis. Thus, we will investigate if the Pachira Extra-Amazonian clade is a new genus or if it will emerge in Amazonian Pachira clade, being Pachira a monophyletic genus. To confirm these hypotheses, it will be used methodologies usual on molecular analysis employed in phylogenetic studies of Bombacoideae (with markers ITS and ETS for ribosomal DNA and trnS-trnG for chloroplast DNA), and if it will be possible, find new markers to the family. Besides, taxonomic studies will be carried out for Brazilian species of Amazonian Pachira clade species obtained in representative herbaria collections to Bombacoideae and survey, and we will analyse the historical biogeography of the group to understand the origin process and diversification of Pachira. (AU)

Scientific publications

(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)

VANIA NOBUKO YOSHIKAWA; MARÍLIA CRISTINA DUARTE; CARLOS DANIEL MIRANDA FERREIRA. Typification of names in Pachira aquatica Aubl. (Malvaceae, Bombacoideae) with a new combination and new status from the Brazilian Amazon forest. Acta Botanica Brasilica, v. 36, 2022-03-11. (19/27132-0)

VANIA NOBUKO YOSHIKAWA; WILLIAM SURPRISON ALVERSON; MARÍLIA CRISTINA DUARTE. Two new species of Pachira (Bombacoideae, Malvaceae) and typification of Pachira patinoi. Rodriguésia, v. 74, 2023-09-15. (19/27132-0)

CARVALHO-SOBRINHO, JEFFERSON; YOSHIKAWA, VANIA NOBUKO; DORR, LAURENCE J.. Notes on Brazilian Pachira (Malvaceae, Bombacoideae) II: Additional typifications and new synonymies. PHYTOKEYS, n. 186, p. 53-72, DEC 6 2021. (19/27132-0)