Location: Crop Improvement and Protection Research
Title: Inter- and Intraspecific Biological Diversity in VerticilliumAuthor
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Submitted to: Meeting Abstract
Publication Type: Abstract Only Publication Acceptance Date: 6/29/2021 Publication Date: 6/29/2021 Citation: Klosterman, S.J. 2021. Inter- and intraspecific biological diversity in Verticillium. Pathogenomics and Effectoromics of Verticillium Species Webinar, June 29, 2021 (virtual). Interpretive Summary: Technical Abstract: The genus Verticillium contains ten plant-associated species. The diversity between species in their morphology and host range is highlighted. The species Verticillium dahliae is the most widespread and has the broadest host range among these species. Different biological and genetic characteristics within this species define its population structure, including nearly eight clonal types, several races, multiple vegetative compatibility groupings, two mating types, and defoliating and nondefoliating isolates. In one example, horizontal gene transfer from the fungus Fusarium oxysporum to V. dahliae led to the defoliating phenotype observed on woody plant hosts. But substantial genetic variations in V. dahliae populations can also be observed at the level of a single field, as illustrated in another example. The genetic bases for this diversity are now being resolved through population genomics approaches. |
