Evolution of Cyst and Noncyst-Forming Heteroderinae
| Autor: | J. G. Baldwin |
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| Rok vydání: | 1992 |
| Předmět: | |
| Zdroj: | Annual Review of Phytopathology. 30:271-290 |
| ISSN: | 1545-2107 0066-4286 |
| DOI: | 10.1146/annurev.py.30.090192.001415 |
| Popis: | Evolution and diversity of Heteroderinae are of special interest because worldwide the subfamily includes some of the most destructive plant-parasitic nematodes of agriculture. Some Heteroderinae form resistant cysts which may protect eggs in the soil for years. Other Heteroderinae lack a cyst, but typically these forms are not a threat to agriculture. Seventeen genera and more than one hundred species are recognized (Table I). Phylogenetic analysis of this diverse group is important to a sound taxon omy of Heteroderinae. Because a natural classification that reflects genealogi cal history has predictive value it will readily adapt to accommodate newly discovered taxa and characters. Classifications that attempt to reflect evolu tionary history have a basis for stability not inherent to artificial classifica tions. Heteroderinae may provide a useful metazoan model for interpreting evolu tion in other small invertebrates. Global knowledge of extant genera and species of Heteroderinae is undoubtedly more complete, and living specimens of most species are more readily available than specimens of species of invertebrate groups often considered to be of lesser economic importance |
| Databáze: | OpenAIRE |
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