Reproductive incompatibility between the B and Q biotypes of the whitefly <i>Bemisia tabaci</i> in China: genetic and behavioural evidence

Sun, Di-Bing; Xu, Jing; Luan, Jing; Liu, S.S.

doi:10.1017/s0007485310000416

Cited by 77 publications

(85 citation statements)

References 37 publications

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“…No hybrids were detected in our study, suggesting that they are genetically isolated in the field. This is consistent with (1) F ST values for MEAMI and Med B. tabaci estimated at national and sampling scales in Tunisia (0.31 B F ST B 0.58) and with the results of previous studies (Moya et al 2001;Simón et al 2007;Dalmon et al 2008), (2) the percentage divergence between Med and MEAMI mtCOI haplotypes in the present study (4.9-5.4%) and in different parts of the world (Boykin et al 2007;Dinsdale et al 2010) which identifies them as two distinct species, and (3) the widely reported reproductive incompatibility between the two species (Elbaz et al 2010;Xu et al 2010;De Barro et al 2011;Sun et al 2011). Currently, although Med and MEAMI species are the most frequently observed species in the Mediterranean basin, they are often observed separately (Bosco et al 2006;De la Rúa et al 2006;Tahiri et al 2006;Tsagkarakou et al 2007;Dalmon et al 2008;Vassiliou et al 2008).…”

Section: Co-occurrence Of Two B Tabaci Species In Tunisiasupporting

confidence: 85%

“…The whitefly B. tabaci is a complex containing at least 24 morphocryptic species (i.e., genetically distinct but morphologically indistinguishable), most of which are reproductively incompatible (Dinsdale et al 2010;Elbaz et al 2010;Xu et al 2010;Wang et al 2010;De Barro et al 2011;Sun et al 2011). Among the 24 B. tabaci putative species delineated by Dinsdale et al (2010), the Mediterranean (Med) and the Middle East-Asia Minor I (MEAMI) species, have attracted particular attention in the past 30 years.…”

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confidence: 99%

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Spatial and host‐plant partitioning between coexisting Bemisia tabaci cryptic species in Tunisia

et al. 2012

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The whitefly Bemisia tabaci is a species complex including at least 24 morphologically indistinguishable species among which the Mediterranean (Med) and Middle East-Asia Minor I (MEAMI) species containing the biotypes commonly known as Q and B, respectively. These B and Q biotypes (hereafter referred to as MEAMI and Med species) are the most invasive agricultural pests of the B. tabaci complex worldwide. The spread of MEAMI and more recently of Med species into regions already invaded by other B. tabaci populations has been frequently seen to lead to their displacement by Med species. In Tunisia, in contrast to usual observations in the Mediterranean basin, Med and MEAMI species have been seen to co-occur in the main crop producing regions. Based on fine population genetics and field spatial distribution analyses, we found that the co-existence of these two interacting species was based on habitat partitioning including spatial and hostplant partitioning. Although they co-occurred at larger spatial scales, they excluded one another at sample scale. We observed neither spatial overlapping nor hybridization between MEAMI and Med B. tabaci. Vegetable crops were the main hosts for MEAMI specimens while 99.1% of the B. tabaci collected on the ornamental, Lantana camara, were Med specimens. Different patterns of genetic diversity were observed between the two species, as well as among Med specimens sampled on the ornamental versus vegetables, with the highest genetic diversity found in Med B. tabaci sampled on L. camara. These findings lead us to focus our discussion on the role played by lantana, human pressure, and competition, in the spatial and genetic patterns observed in the whitefly B. tabaci.

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Section: Co-occurrence Of Two B Tabaci Species In Tunisiasupporting

confidence: 85%

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confidence: 99%

Spatial and host‐plant partitioning between coexisting Bemisia tabaci cryptic species in Tunisia

et al. 2012

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“…The two most distinct populations were BJabo, which might be because of geographic distance, and CPsoj, which might be because of the greater adaptation of the pest to the host plant and/or to the reproductive isolation. Previous studies have confirmed that specific populations reproductively isolated because of copulation and post-copulation barriers (Wang et al, 2010;Xu et al, 2010;Sun et al, 2011).…”

Section: Genetic Structurementioning

confidence: 77%

Population variability of Bemisia tabaci (Genn.) in different hosts

Valle

Lourenção²,

Zucchi³

et al. 2013

Genet. Mol. Res.

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ABSTRACT. The silverleaf whitefly, Bemisia tabaci (Genn.) (Hemiptera: Aleyrodidae), is a cryptic species complex that contains some of the most damaging pests in tropical and subtropical regions. Recent studies have indicated that this complex is composed of at least 24 distinct and morphologically indistinguishable species that mainly differ in their ability to transmit phytoviruses, adapt to hosts, and induce physiological changes in certain hosts. The importance of this species has been increasing worldwide, because it serves as a phytovirus vector, particularly for geminiviruses, in economically important crops. Here, we aimed to examine the population variability (2013) G.E. do Valle et al.-soybean], UBman [Ubatuba (SP, Brazil) -cassava], and PEmel [Petrolina (PE, Brazil) -melon]. Thirteen polymorphic loci with 50 alleles were observed, with an average of 2.37 (range: 2.00-2.91) alleles per population. The UBman and PEmel B. tabaci populations were the most differentiated, which was probably caused by insect adaptation to the host plant and the use of insecticides. A 33.87% interpopulation variation was observed, indicating that microsatellites may be used to measure differentiation among these B. tabaci populations. Based on the comparison of microsatellites in the current study, only the Middle East-Asia Minor 1 population of B. tabaci was found in the six populations.

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“…The sequencing effort also demonstrated that several apparently shared alleles at the Bem6 locus were homoplasious, having evolved independently via different insertions and deletions at multiple heptanucleotide tandem repeats, but producing DNA fragments of identical size. Biotypes B and Q belong to genetically distinct but morphologically indistinguishable species in the Bemisia tabaci species complex (De Barro et al 2011) and are reproductively incompatible (Elbaz et al 2010, Sun et al 2011. Hybrids are rarely produced in the laboratory and are sterile (Sun et al 2011).…”

Section: Resultsmentioning

confidence: 99%

Distribution of <I>Bemisia tabaci</I> (Hemiptera: Aleyrodidae) Biotypes in North America After the Q Invasion

McKenzie

Bethke²,

Byrne

et al. 2012

jnl. econ. entom.

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After the 2004 discovery of the Bemisia tabaci (Gennadius) (Hemiptera Aleyrodidae) Q biotype in the United States, there was a vital need to determine the geographical and host distribution as well as its interaction with the resident B biotype because of its innate ability to rapidly develop high-level insecticide resistance that persists in the absence of exposure. As part of a coordinated country-wide effort, an extensive survey of B. tabaci biotypes was conducted in North America, with the cooperation of growers, industry, local, state, and federal agencies, to monitor the introduction and distribution of the Q biotype. The biotype status of submitted B. tabaci samples was determined either by polymerase chain reaction amplification and sequencing of a mitochondrial cytochrome oxidase I small subunit gene fragment and characterization of two biotype discriminating nuclear microsatellite markers or esterase zymogram analysis. Two hundred and eighty collections were sampled from the United States, Bermuda, Canada, and Mexico during January 2005 through December 2011. Host plants were split between ornamental plant and culinary herb (67%) and vegetable and field crop (33%) commodities. The New World biotype was detected on field-grown tomatoes (Solanum lycopersicum L.) in Mexico (two) and in commercial greenhouses in Texas (three) and represented 100% of these five collections. To our knowledge, the latter identification represents the first report of the New World biotype in the United States since its rapid displacement in the late 1980s after the introduction of biotype B. Seventy-one percent of all collections contained at least one biotype B individual, and 53% of all collections contained only biotype B whiteflies. Biotype Q was detected in 23 states in the United States, Canada (British Columbia and Ontario territories), Bermuda, and Mexico. Forty-five percent of all collections were found to contain biotype Q in samples from ornamentals, herbs and a single collection from tomato transplants located in protected commercial horticultural greenhouses, but there were no Q detections in outdoor agriculture (vegetable or field crops). Ten of the 15 collections (67%) from Canada and a single collection from Bermuda contained biotype Q, representing the first reports of biotype Q for both countries. Three distinct mitochondrial haplotypes of B. tabaci biotype Q whiteflies were detected in North America Our data are consistent with the inference of independent invasions from at least three different locations. Of the 4,641 individuals analyzed from 517 collections that include data from our previous work, only 16 individuals contained genetic or zymogram evidence of possible hybridization of the Q and B biotypes, and there was no evidence that rare hybrid B-Q marker co-occurrences persisted in any populations.

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Reproductive incompatibility between the B and Q biotypes of the whitefly Bemisia tabaci in China: genetic and behavioural evidence

Cited by 77 publications

References 37 publications

Spatial and host‐plant partitioning between coexisting Bemisia tabaci cryptic species in Tunisia

Spatial and host‐plant partitioning between coexisting Bemisia tabaci cryptic species in Tunisia

Population variability of Bemisia tabaci (Genn.) in different hosts

Distribution of <I>Bemisia tabaci</I> (Hemiptera: Aleyrodidae) Biotypes in North America After the Q Invasion

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