Back to Search
Start Over
Competitive Ability and Fitness Differences between Two Introduced Populations of the Invasive Whitefly Bemisia tabaci Q in China.
- Source :
- PLoS ONE; Jun2014, Vol. 9 Issue 6, p1-9, 9p
- Publication Year :
- 2014
-
Abstract
- Background: Our long-term field survey revealed that the Cardinium infection rate in Bemisia tabaci Q (also known as biotype Q) population was low in Shandong, China over the past few years. We hypothesize that (1) the Cardinium-infected (C<superscript>+</superscript>) B. tabaci Q population cannot efficiently compete with the Cardinium-uninfected (C<superscript>−</superscript>) B. tabaci Q population; (2) no reproductive isolation may have occurred between C<superscript>+</superscript> and C<superscript>−</superscript>; and (3) the C<superscript>−</superscript> population has higher fitness than the C<superscript>+</superscript> population. Methodology and Results: To reveal the differences in competitive ability and fitness between the two introduced populations (C<superscript>+</superscript> and C<superscript>−</superscript>), competition between C<superscript>+</superscript> and C<superscript>−</superscript> was examined over several generations. Subsequently, the reproductive isolation between C<superscript>+</superscript> and C<superscript>−</superscript> was studied by crossing C<superscript>+</superscript> with C<superscript>−</superscript> individuals, and the fitnesses of C<superscript>+</superscript> and C<superscript>−</superscript> populations were compared using a two-sex life table method. Our results demonstrate that the competitive ability of the C<superscript>+</superscript> whiteflies was weaker than that of C<superscript>−</superscript>. There is that no reproductive isolation occurred between the two populations and the C<superscript>−</superscript> population had higher fitness than the C<superscript>+</superscript> population. Conclusion: The competitive ability and fitness differences of two populations may explain why C<superscript>−</superscript> whitefly populations have been dominant during the past few years in Shandong, China. However, the potential role Cardinium plays in whitefly should be further explored. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 9
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- PLoS ONE
- Publication Type :
- Academic Journal
- Accession number :
- 96860700
- Full Text :
- https://doi.org/10.1371/journal.pone.0100423