Welcome to "Bemisia tabaci database of Asiatic genetic groups"
The tobacco whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), is a species complex of genetically distinguishing cryptic species and physiologically distinct differences between genetic groups. The B. tabaci cryptic species complex is comprised of 46 described species worldwide and 10 cryptic species from India. The management of B. tabaci has become a difficult proposition owing to its development of resistance to commonly used insecticides. As a consequence of a variety of adverse effects of chemical insecticides, there are urgent demands for alternative strategies in modern pest management (i.e., for controlling insect populations).
No information is available at the molecular level regarding B. tabaci Asian genetic groups. Understanding the molecular basis of Bemisia tabaci may help in identifying newer target sites for novel biorational molecules.
To our knowledge, there is no such database on the Transcriptome of Bemisia tabaci with respect to Asian genetic groups. Hence, we develop a user-friendly database on the transcriptome of two genetic groups of Bemisia tabaci.
Asiatic genetic groups of Bemisia tabaci and their distribution
Asia 1: Bemisia tabaci genetic group Asia 1 is a major agricultural pest predominantly found in Asian countries, including China, India, Thailand, and Indonesia. This whitefly genetic group has a wide host range, infesting and damaging various economically important crops such as cotton, tomato, pepper, cucumber, and melons. Its feeding behavior weakens plants and makes them susceptible to diseases, and it is also a vector for transmitting plant viruses, leading to severe crop losses. Insecticide resistance is a significant concern with Bemisia tabaci Asia 1, posing challenges for pest management strategies. Molecular studies have been conducted to understand its genetic diversity and population dynamics, aiming to develop effective control measures and sustainable agricultural practices. Continuous research and monitoring are essential to stay updated on the characteristics and distribution of this pest.
Asia II 1: Bemisia tabaci genetic group Asia II 1 is a significant agricultural pest widely distributed across Asia, including countries like China, Japan, South Korea, and Vietnam. This subgroup has a broad host range, infesting various crops, vegetables, fruits, ornamental plants, and weeds. Its feeding behavior weakens plants and facilitates the transmission of harmful plant viruses, leading to substantial crop damage and reduced yields. Like other Bemisia tabaci groups, Asia II 1 has developed resistance to multiple insecticides, posing challenges for effective pest control. Research efforts focus on understanding its genetic diversity, population dynamics, and insecticide resistance mechanisms to develop targeted and sustainable pest management strategies. Continuous monitoring and research are essential to stay ahead of this dynamic pest and safeguard agricultural productivity in the region.
Distribution of Asiatic genetic groups in India
Asia 1 Distribution in India: Bemisia tabaci Asia 1 has been found in various regions of India, particularly in the northern and central parts of the country. It is known to infest a wide range of crops, including cotton, vegetables, fruits, and ornamental plants. The presence of Asia 1 whiteflies in India has been a concern for agricultural practices, as they can cause significant damage to crops and transmit plant viruses, impacting agricultural productivity.
Asia II 1 Distribution in India: Bemisia tabaci Asia II 1 is also prevalent in India, and its distribution overlaps with that of Asia 1. This genetic group has been reported in various parts of the country, including northern, central, and southern regions. Similar to Asia 1, Asia II 1 whiteflies have a broad host range and can affect important crops, leading to economic losses for farmers.
Images of Bemisia tabaci at different stages
Different images of Bemisia tabaci, loss caused by them and experimental setup.
