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VOL. 9, ISSUE 11 (2024)
Chromosomal studies on various species of Aphids infesting different host plant species
Authors
Poonam Kumari, Kanika Choudhary, Kumari Ruchika, Sunil Kumar
Abstract

Aphids are small, polyphagous insect pests, harmful to plants, commonly found in gardens, wild plants, and on vegetable crops and agricultural fields. They damage host plants by feeding on its sap. Aphid pests have a fascinating biology and cytology that makes research subject interesting.

Aphid are small, polyphagous insect pests, harmful to plants, commonly found in garden, wild plants, and on vegetable crops and agricultural fields. They damage host plants by feeding on its sap. Aphid pests have fascinating biology and cytology that makes

They show polymorphism, viviparity and generational telescoping of their generations. There are number of karyotypic variations caused by fragmentation and fusion of holocentric chromosomes. Even within single species, aphids typically display an exceptional degree of karyotypic diversity. Aphid chromosomes infesting nine species of host plants have been examined in the present investigation. Out of these 9 species 2 species namely Aphis fabae solanella (2n=7, 8) and Lipaphis erysimi (2n=9, 10) showed karyotypic variations. At metaphase stage chromosomal lengths, both actual and relative as well as total complement length (TCL) were assessed. Aphid species showed varying chromosomal measurements: Apis craccivora had the shortest chromosome, while Aphis gossypii had the longest; Sitobian chanikiwitii had the highest total complement length, and Aphis fabae and Aphis gosssypii had the shortest relative lengths of chromosomes. Based on the relative lengths data, karyotypes and idiograms were constructed.
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Pages:38-41
How to cite this article:
Poonam Kumari, Kanika Choudhary, Kumari Ruchika, Sunil Kumar "Chromosomal studies on various species of Aphids infesting different host plant species". International Journal of Entomology Research, Vol 9, Issue 11, 2024, Pages 38-41
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