Banca de DEFESA: IVAN CEZAR PATRICIO REBOUÇAS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : IVAN CEZAR PATRICIO REBOUÇAS
DATE: 30/06/2023
TIME: 09:00
LOCAL: Universidade Federal da Bahia
TITLE:

Taxonomic implications of the external morphology of seeds in the classification of Agiosperms non-Monocotyledonous from Brazil

KEY WORDS:

scientometrics, literature review, systematic

PAGES: 97
BIG AREA: Ciências Biológicas
AREA: Botânica
SUBÁREA: Morfologia Vegetal
SPECIALTY: Morfologia Externa
SUMMARY:

The morphological characteristics of seeds, such as fleshy projections, indumentum, texture, ornamentation, color, and internal structures, are frequently used in taxonomic studies. Therefore, this study aimed to discuss the importance of external morphological characteristics of seeds and their taxonomic potential for non-monocotyledonous Angiosperms occurring in Brazil through a systematic literature review. The study was conducted by (1) identifying the number of published articles on taxonomy and evolution of non-monocotyledonous Angiosperms in Brazil that used seeds in their studies; (2) analyzing the origin of seeds used in taxonomic studies; (3) identifying which families and respective hierarchical levels use the external morphological characteristics of seeds as a tool in identification and taxonomic classification; and (4) identifying the external morphological characteristics of seeds used in identification and classification at levels lower than the family level. For the past 66 years, 256 articles were found that used seeds in taxonomic and evolutionary studies. The main strategy in seed studies was field collection (38%), followed by seeds from field and herbarium collections (30%), seeds preserved in herbaria (26%), and seeds from seed banks (6%). Seed morphological characteristics were most commonly used in species identification (52.8%), followed by genera (25.7%) and families (8.2%), and they are valuable for the taxonomy of 67 families of non-monocotyledonous Angiosperms in Brazil. The external morphological characteristics that stand out as important in taxonomy are shape, followed by length, width, coloration, and fleshy projections. The results of this study demonstrate that the external morphological characteristics of seeds have significant potential as a taxonomic tool for non-monocotyledonous Angiosperms in Brazil.

COMMITTEE MEMBERS:
Interno - 1932677 - ANDERSON GEYSON ALVES DE ARAUJO
Externa ao Programa - 3497440 - SHEILA VITORIA RESENDE - UFBAExterno à Instituição - ARISTÔNIO MAGALHÃES TELES - UFG