Abstract
The study of molecular systematics, where the concept was first introduced in Chap. 1, enables the elucidation of relationships among groups of organisms using molecular means. Molecular systematics allows us to unravel the evolutionary history embedded in the organism’s genetic material by reconstructing phylogenetic trees, which illuminate the driving forces behind speciation and biodiversity. This chapter focused on the molecular systematics of parasitic nematodes that afflict humans and animals, where the phylum Nematoda is the second-largest phylum in the kingdom Animalia. Relationships among the major groups were detailed, as evidenced through molecular phylogenetic studies performed over the decades. A summary of the major findings, together with significant milestones in elucidating parasitic nematode phylogenetic relationships, was discussed. With such vast species diversity, coupled with the complex nature of host-parasite relationships, a robust phylogenetic framework through the study of nematode molecular systematics is essential to make meaningful comparisons across taxa, for classification and the generation of evolutionary hypotheses for the phylum.
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Thaenkham, U., Chaisiri, K., Hui En Chan, A. (2022). Molecular Systematics of Parasitic Nematodes. In: Molecular Systematics of Parasitic Helminths . Springer, Singapore. https://doi.org/10.1007/978-981-19-1786-8_10
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