scholarly journals Resistance to Bemisia tabaci (Hemiptera: Aleyrodidae) Mediterranean (Q Biotype) in Landrace and Wild Tomato Populations from Mexico

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
Reynaldo Millán-Chaidez ◽  
José Antonio Garzón-Tiznado ◽  
Perla Judith Linares-Flores ◽  
Sixto Velarde-Félix ◽  
Gabriel Antonio Lugo-García ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Wild Tomato ◽  
Q Biotype

A new silverleaf-inducing biotype Ms of Bemisia tabaci (Hemiptera: Aleyrodidae) indigenous to the islands of the south-west Indian Ocean

2005 ◽  
Vol 95 (1) ◽  
pp. 29-35 ◽  
Author(s):  
H. Delatte ◽  
B. Reynaud ◽  
M. Granier ◽  
L. Thornary ◽  
J.M. Lett ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Distinct Group ◽  
Genetic Type ◽  
Coi Gene ◽  
Vegetable Crops ◽  
Sequence Comparisons ◽  
Genetic Types ◽  
South West Indian Ocean ◽  
Biotype B ◽  
Q Biotype

AbstractFollowing the first detection of tomato yellow leaf curl virus (TYLCV) from R=union (700 km east of Madagascar) in 1997 and the upsurge of Bemisia tabaci (Gennadius) on vegetable crops, two genetic types of B. tabaci were distinguished using RAPD–PCR and cytochrome oxidase I (COI) gene sequence comparisons. One type was assigned to biotype B and the other was genetically dissimilar to the populations described elsewhere and was named Ms, after the Mascarenes Archipelago. This new genetic type forms a distinct group that is sister to two other groups, one to which the B biotype is a member and one to which the Q biotype belongs. The Ms biotype is thought to be indigenous to the region as it was also detected in Mauritius, the Seychelles and Madagascar. Both B and Ms populations of B. tabaci induced silverleaf symptoms on Cucurbita sp., and were able to acquire and transmit TYLCV. Taken together these results indicate that the Ms genetic type should be considered a new biotype of B. tabaci.

scholarly journals Host range of Bemisia tabaci Q-biotype

2009 ◽  
Vol 51 ◽  
pp. 75-77 ◽  
Author(s):  
Hiroyuki Iida ◽  
Toshio Kitamura ◽  
Ken-ichiro Honda ◽  
Yasuhiro Mizusawa ◽  
Shigeru Kamata ◽  
...  
Keyword(s):  
Host Range ◽  
Bemisia Tabaci ◽  
Q Biotype

scholarly journals Effect of common pesticides on Q-biotype Bemisia tabaci (Gennadius) collected from three major tomato-growing districts in Aichi Prefecture

2018 ◽  
Vol 60 (0) ◽  
pp. 117-120
Author(s):  
Hiroshi Ishikawa ◽  
Kyoko Suzuki ◽  
Tooru Ohno ◽  
Norikuni Saka
Keyword(s):  
Bemisia Tabaci ◽  
Aichi Prefecture ◽  
Q Biotype

Distribution and dynamics of Bemisia tabaci invasive biotypes in central China

2010 ◽  
Vol 101 (1) ◽  
pp. 81-88 ◽  
Author(s):  
Q. Rao ◽  
C. Luo ◽  
H. Zhang ◽  
X. Guo ◽  
G.J. Devine
Keyword(s):  
Bemisia Tabaci ◽  
Hubei Province ◽  
Central China ◽  
Agricultural Systems ◽  
Tobacco Whitefly ◽  
Broad Spectrum Resistance ◽  
Rapd Pcr ◽  
Comprehensive Survey ◽  
Q Biotype ◽  
Mitochondrial Cytochrome Oxidase

AbstractThe tobacco whitefly, Bemisia tabaci (Gennadius), causes severe crop losses in many agricultural systems. The worst of these losses are often associated with the invasion and establishment of specific whitefly biotypes. In a comprehensive survey of biotypes present in central China between 2005 and 2007, we obtained 191 samples of B. tabaci from 19 districts in Hubei province and its surrounds. Biotypes were identified by RAPD-PCR and by sequencing the mitochondrial cytochrome oxidase I gene (mtCO1). We determined that these central Chinese haplotypes included the world's two most invasive B. tabaci biotypes (B and Q) and two indigenous biotypes (ZHJ1 and ZHJ3). The B biotype shared >99.7% identity with other Chinese B biotypes and the Q biotype shared >99.5% of its identity with Q samples from the Mediterranean, USA, Africa and East Asia. By 2007, the Q biotype was dominant over much of Hubei province and appeared to be supplanting all other biotypes, although both the invasive and indigenous biotypes existed in sympatry in some regions. The invasion and rapid establishment of the Q biotype in China mirrors events elsewhere in the world, and we suggest that this is a consequence of its reproductive isolation, its polyphagous nature and its broad-spectrum resistance to insecticides. Its dominance has severe implications for the sustainability of some insecticide groups and for the production of a number of crops.

scholarly journals Modelling temperature-dependent bionomics of Bemisia tabaci (Q-biotype)

2007 ◽  
Vol 32 (1) ◽  
pp. 50-55 ◽  
Author(s):  
OLIVIER BONATO ◽  
AMANDINE LURETTE ◽  
CLAIRE VIDAL ◽  
JACQUES FARGUES
Keyword(s):  
Bemisia Tabaci ◽  
Temperature Dependent ◽  
Q Biotype

scholarly journals Effects of Lecanicillium lecanii strain JMC-01 on the physiology, biochemistry, and mortality of Bemisia tabaci Q-biotype nymphs

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7690 ◽  
Author(s):  
Ting Xie ◽  
Ling Jiang ◽  
Jianshe Li ◽  
Bo Hong ◽  
Xinpu Wang ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Control Level ◽  
Agricultural Pests ◽  
Weight Changes ◽  
Glutathione S Transferase ◽  
Lecanicillium Lecanii ◽  
Protective Enzyme ◽  
Protective Enzymes ◽  
Q Biotype ◽  
Control Resource

Background Lecanicillium lecanii is an entomopathogenic fungi, which was isolated from insects suffering from disease. Now, it is an effective bio-control resource that can control agricultural pests such as whitefly and aphids. There are many studies on the control of various agricultural pests by L. lecanii, but no report on its control of Bemisia tabaci biotype-Q exists. In this work, we studied the susceptibility of B. tabaci Q-biotype (from Ningxia, China) to L. lecanii JMC-01 in terms of nymph mortality and the changes in detoxifying protective enzymes activities. Methods B. tabaci nymphs were exposed to L. lecanii JMC-01 conidia by immersion with the host culture. Mortality was assessed daily for all nymph stages. The detoxifying and protective enzyme activity changes, weight changes, and fat, and water contents of the nymphs were determined spectrophotometrically. Results All instars of B. tabaci died after being infested with 1 × 108 conidia/mL. The 2nd-instar nymphs were the most susceptible, followed by the 3rd-instar nymphs. The corrected cumulative mortality of the 2nd- and 3rd-instar nymphs was 82.22% and 75.55%, respectively. The levels of detoxifying and protective enzymes initially increased and then decreased. The highest activities of carboxylesterase, acetylcholinesterase, peroxidase, and catalase occurred on the 3rd day, reaching 10.5, 0.32, 20, and 6.3 U/mg prot, respectively. These levels were 2.2-, 4.3-, 2.4-, and 1.4-fold the control levels, respectively. The highest activities of glutathione-S transferase and superoxide dismutase on the 2nd day were, respectively, 64 and 43.5 U/mg prot. These levels were, respectively, 2.7 and 1.1-fold that of the control level. The water and fat content in the infected B. tabaci nymphs decreased and differed significantly from the control levels. The weight increased continuously in the first 24 h, decreasing thereafter. At 72 h, the infestation level was about 0.78-fold that of the control level. Conclusions The studied L. lecanii JMC-01 strain is pathogenic to the B. tabaci Q-biotype. This strain interferes with the normal functioning of detoxifying and protective enzymes, and is also involved in the disruption of normal physiological metabolism in B. tabaci.

scholarly journals Identification of the B, Q, and native Brazilian biotypes of the Bemisia tabaci species complex using Scar markers

2016 ◽  
Vol 51 (5) ◽  
pp. 555-562 ◽  
Author(s):  
Paulo Roberto Queiroz ◽  
Erica Soares Martins ◽  
Nazaré Klautau ◽  
Luzia Lima ◽  
Lilian Praça ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Species Complex ◽  
Scar Marker ◽  
Random Amplified Polymorphic Dna ◽  
Scar Markers ◽  
Sequence Characterized Amplified Region ◽  
Field Samples ◽  
Scar Primer ◽  
Q Biotype ◽  
B Biotype

Abstract: The objective of this work was to develop sequence-characterized amplified region (Scar) markers to identify the B, Q, and native Brazilian biotypes of the sweet potato whitefly [Bemisia tabaci (Hemiptera: Aleyrodidae)]. Random amplified polymorphic DNA (RAPD) amplification products, exclusive to the B and Brazilian biotypes, were selected after the analysis of 12,000 samples, in order to design a specific Scar primer set. The BT-B1 and BT-B3 Scar markers, used to detect the B biotype, produced PCR fragments of 850 and 582 bp, respectively. The BT-BR1 Scar marker, used to identify the Brazilian biotype, produced a PCR fragment of 700 bp. The Scar markers were tested against the Q biotype, and a flowchart was proposed to indicate the decision steps to use these primers, in order to correctly discriminate the biotypes. This procedure allowed to identify the biotypes that occur in field samples, such as the B biotype. The used set of primers allowed to discriminate the B, Q, and native Brazilian biotypes of B. tabaci. These primers can be successfully used to identify the B biotype of B. tabaci from field samples, showing only one specific biotype present in all cultures.

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