Estrutura genética populacional de Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) utilizando marcadores microssatélites

Valle, GE do; Zucchi, MI; Stabellini, NS; Lourenção, A. L.; Pinheiro, J.B.

doi:10.1590/s1519-566x2011000200008

Cited by 10 publications

(5 citation statements)

References 20 publications

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“…; Valle et al. ). Even though B. tabaci has been regarded as a cryptic species complex by some authors, and biotype B was classified as the Middle East‐Asia Minor 1 (De Barro et al.…”

Section: Introductionmentioning

confidence: 97%

Resistance of cotton genotypes with different leaf colour and trichome density to Bemisia tabaci biotype B

Prado

Peñaflor

Cia

et al. 2015

J Applied Entomology

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The silverleaf whitefly (SLW), Bemisia tabaci biotype B, is considered one of the most serious pests in cotton worldwide. Its control is based on the use of pesticides, which are well-known for their harmful effects on nontarget organisms and the environment. Here, we examined resistance of several cotton genotypes in terms of antixenosis and antibiosis against SLW. We also investigated the mechanisms of cotton genotypes involved in antixenosis against SLW by correlating with leaf trichome density and leaf colour parameters. In choice tests, we selected resistant cotton genotypes, Gossypium hirsutum palmeri, Aubum 56-7, G. hirsutum morrilli, Moc o, Nu-16 (B2 B3 B6)-78/658, Paymaster 53-816 and 'IAC 23', based on SLW oviposition and host preference. No-choice tests with these genotypes confirmed antixenosis effect on SLW; however, no antibiosis resistance was detected in terms of developmental period and adult emergence rate. We found SLW oviposition preference was positively correlated with trichome density in the abaxial leaf surface, while adult host preference was mostly explained by high levels of green intensity of adaxial surface. Nevertheless, both SLW oviposition and host preference were negatively correlated with the lightness level of adaxial leaf surface. Probably, the underlying mechanism of cotton resistance is based on more than just these two parameters, but our study will contribute to selecting resistant cotton genotypes and helps to understand the mechanisms involved in cotton resistance against SLW. To our best knowledge, this is the first work showing that cotton leaf colour parameters are related to resistance against SLW.

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“…; Valle et al. ). Even though B. tabaci has been regarded as a cryptic species complex by some authors, and biotype B was classified as the Middle East‐Asia Minor 1 (De Barro et al.…”

Section: Introductionmentioning

confidence: 97%

Resistance of cotton genotypes with different leaf colour and trichome density to Bemisia tabaci biotype B

Prado

Peñaflor

Cia

et al. 2015

J Applied Entomology

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“…The monitoring of the pots and the replacement of damaged plants with healthy ones was carried out weekly. Adults from this culture have recently been characterized molecularly, confirming that they belong to this biotype (Fontes et al, 2010;Valle et al, 2011).…”

Section: Stock-rearing Of B Tabaci Biotype Bmentioning

confidence: 59%

Assesing Bemisia tabaci (Genn.) biotype B resistance in soybean genotypes: Antixenosis and antibiosis

Silva¹,

Baldin²,

Souza³

et al. 2012

Chilean J. Agric. Res.

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“…Obtaining specific primers that access microsatellite loci in B. tabaci enables the study of this genetic variability and generates information that could be used in future management programs of this pest. A previous study with other molecular markers (SSRs) for B. tabaci also showed a low level of polymorphism (Valle et al, 2011). A recent tool for genetic analysis was developed by Nazereno and Reis (2011), which consisted in evaluating monomorphic G.E.…”

Section: Resultsmentioning

confidence: 99%

Low polymorphism revealed in new microsatellite markers for Bemisia tabaci (Hemiptera: Aleyrodidae)

Lourenção¹,

Zucchi²,

Pinheiro³

2012

Genet. Mol. Res.

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ABSTRACT. The silverleaf whitefly (Bemisia tabaci) is actually a complex of morphologically indistinct species that vary in their capacity to transmit plant viruses and to induce physiological disorders in plants of economic importance. The worldwide impact of this whitefly has increased greatly, as it is a vector of various types of phytovirus, especially geminiviruses, in plants of economic importance. The adaptability of B. tabaci to many regions of the world has fostered the appearance of various biotypes that attack a broad spectrum of host plants. We developed microsatellite markers to study genetic variability and population structure of this whitefly in Brazil. Thirteen polymorphic microsatellite markers were isolated and characterized in 20 individuals from a natural population that were collected in soybean in Campinas (SP). The number of alleles per locus ranged from one to two, and the expected heterozygosity ranged from 0.000 to 0.505. These microsatellite 3900 ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 11 (4): 3899-3903 (2012) G.E. Valle et al. markers will be useful for studies and management of B. tabaci. The low polymorphism found in these molecular markers is probably associated with homology of genes expressed in these markers.

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Estrutura genética populacional de Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) utilizando marcadores microssatélites

Abstract: Popula on Gene c Structure of Bemisia tabaci (Hemiptera: Aleyrodidae) U lizing Microsatellite Markers

Cited by 10 publications

References 20 publications

Resistance of cotton genotypes with different leaf colour and trichome density to Bemisia tabaci biotype B

Resistance of cotton genotypes with different leaf colour and trichome density to Bemisia tabaci biotype B

Assesing Bemisia tabaci (Genn.) biotype B resistance in soybean genotypes: Antixenosis and antibiosis

Low polymorphism revealed in new microsatellite markers for Bemisia tabaci (Hemiptera: Aleyrodidae)

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