Evolutionary and Phylogenetic Analysis of Fungi Taxonomy

Evolutionary and Phylogenetic Analysis of Fungi Taxonomy -...

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Bio 124 Diversity Portfolio Group 1 Evolutionary and Phylogenetic Analysis of Fungi Taxonomy For several years, mycologists relied on an ambiguous technique of classification to discern fungi into a phylogenetic tree. Fungi were separated based on their morphological characteristics and heterotrophic nutrition; however, this did not distinguish fungi from other groups with nearly the same ecological tendencies (Blackwell, 2009). To eliminate these similarities, new techniques have come into use; these selective taxonomy techniques have allowed for a clearer understanding of the phylogenetic and evolutionary relationships among the Fungi kingdom, as shown in Figure 1. Today, mycologists have refined fungal classification to the point of understanding the nature of nearly 1.5 million species of fungi, as well as their interactions with insects and other animals. The new classification is now based on molecular analysis of fungi, and finding traits from the organisms’ life cycles, structural anatomy, and biochemical pathways. These characters also include flagellation, cell wall structure, mitochondrial structure, and the site of meiosis to determine a modern monophyletic kingdom of Fungi (Blackwell, 2009). The molecular analysis has allowed mycologists to group the similarities in these large numbers of characters by using rDNA, stabilizing understanding of the fungal classification to the level of order (Blackwell, 2009).The modern phylogenetic tree is based on multiple DNA loci as well as whole genomes of fungal species, and is now widely accepted my several mycologists as an accurate interpretation. The new tree has revolutionized
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This note was uploaded on 03/18/2012 for the course BIO 124 taught by Professor Dr.duran during the Winter '11 term at Drexel.

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Evolutionary and Phylogenetic Analysis of Fungi Taxonomy -...

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