1Abanes, Micca Ella Nicole Z., Bagtas, Kiana Clarice L., Cruz, Jasmine Faith C., De Guzman, Rochele P., and Factor, Angeline P.
1Students, Department of Biology, College of Science, Polytechnic University of the Philippines, Sta. Mesa, Manila
ABSTRACT
To gain knowledge about plant taxonomy's evolutionary relationships and classification, an analysis between six species is presented for this laboratory activity. Digitaria bicornis, Eragrostis amabilis, Phyllanthus urinaria, Mimosa pudica, and Tridax procumbens are among the members of the ingroup taxa that were chosen. In order to comprehend plant structure, somatic and vegetative characters are evaluated, and reproductive characters are studied in order to investigate evolutionary relationships. The character states will show both common and distinctive characteristics across the species, with shared features indicating their placement in the families Poaceae, Phyllanthaceae, Fabaceae, and Asteraceae. The representation and interpretation of character data will be made easier by binary/multi-state coding, with plesiomorphic and apomorphic character states indicating ancestry and evolved traits, respectively. The cladogram will also demonstrate relationships based on shared characteristics, emphasizing the notion of parsimony. Of the provided taxa, T2 and T4 are the most parsimonious. Phragmites australis, the putative outgroup, despite having minimal in common with the studied species, showed characteristics consistent with a potential ancestor connection, according to the phylogenetic analysis. Indicated by shared character states, the five taxa constituted a monophyletic group, indicating a common ancestor. Additional information on evolutionary changes and the connections between different species was provided by synapomorphies and autapomorphies. This research has implications for biodiversity and conservation, helping to identify hotspots, prioritize conservation efforts, and create successful conservation strategies. Humans' knowledge of ecological processes, species interactions, and the influence of human activities on evolutionary processes are all influenced by their understanding of evolutionary relationships.