Análise morfométrica em espécies de Trichogramma (Hymenoptera: Trichogrammatidae)

Querino, Ranyse B.; Zucchi, Roberto A.

doi:10.1590/s1519-566x2004000500007

Cited by 10 publications

(6 citation statements)

References 5 publications

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“…Regarding T. galloi, the species showed considerable genetic homogeneity with respect to ITS2 sequences and the smallest number of variable sites. This finding is in agreement with the study of Querino and Zucchi (2004), who reported only minor intraspecific morphometric variations in T. galloi, with overlapping of accessions from Brazil and Uruguay and minimal differences between parasitoids from these two countries and specimens from Bolivia. The modest intraspecific variation in T. galloi is associated with a narrow host range, which comprises predominantly Diatraea saccharalis Fabricius, 1994 (Lepidoptera: Crambidae) in Brazil, where the parasitoid is considered to be a specialist species.…”

Section: Discussionsupporting

confidence: 93%

Sequence analysis of the internal transcribed spacer 2 (ITS2) region of rDNA for identifying Trichogramma species and evaluating genetic diversity

et al. 2021

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Species of Trichogramma Westwood, 1833 (Hymenoptera: Trichogrammtidae) are frequently used as biological control agents against Lepidoptera, but practical application of these egg endoparasitoids are complicated because of their complex taxonomy. This study aimed to compare sequences of internal transcribed spacer regions of ribosomal DNA (ITS2-rDNA) of Trichogramma accessions with those deposited in GenBank in order to access the reliability of the ITS2 as a barcode for discriminating species and evaluating the genetic diversity. ITS2-rDNA sequences obtained from seventeen specimens of Trichogramma confirmed previous identifications based on morphological characteristics. Multiple sequence alignment revealed the existence of highly conserved regions in ITS2 sequences while the neighbour-joining dendrogram indicated that the specimens formed three clusters comprising T. manicobai and T. marandobai (group I), T. galloi (group II) and T. pretiosum (group III). The ITS2 marker was shown to be a powerful DNA barcode for discriminating Trichogramma species and could be used to complement the morphological approach.

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Section: Discussionsupporting

confidence: 93%

Sequence analysis of the internal transcribed spacer 2 (ITS2) region of rDNA for identifying Trichogramma species and evaluating genetic diversity

et al. 2021

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“…Furthermore, by the analysis of principal components, morphological variation in T. acacioi Brun, Moraes and Soares, T. atopovirilia, T. demoraesi Nagaraja, T. distinctum Zucchi, T. galloi Zucchi and T. bruni Nagaraja (e.g. Querino and Zucchi 2004a) were studied. Morphometric methods also allowed separation of T. minutum Riley and T. platneri Nagarkatti, two species impossible to separate with conventional morphology (Burks and Heraty 2002).…”

Section: Morphometrymentioning

confidence: 99%

Systematics of the Trichogrammatidae (Hymenoptera: Chalcidoidea) with a Focus on the Genera Attacking Lepidoptera

Querino¹,

Zucchi²,

Pinto

2009

Egg Parasitoids in Agroecosystems With Emphasis on Trichogramma

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“…The most recent list of Trichogramma species in Brazil and their corresponding hosts was prepared by Zucchi & Monteiro (1997). Information about the species contained in the collection at ESALQ is available on the web (Querino & Zucchi 2001). …”

Section: Studies On Trichogrammamentioning

confidence: 99%

Trichogramma in Brazil: feasibility of use after twenty years of research

Parra¹,

Zucchi²

2004

Neotrop. Entomol.

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Neotropical Entomology 33(3): 271-281 (2004) Trichogramma no Brasil: Viabilidade de Uso Após Vinte Anos de Pesquisa RESUMO -São apresentados os resultados dos estudos com Trichogramma no Brasil, especialmente aqueles desenvolvidos na ESALQ/USP, nas últimas duas décadas . O projeto, envolvendo desde a taxonomia, técnicas de criação, aspectos biológicos e comportamentais das pragas e dos parasitóides, dinâmica populacional das pragas, técnicas de liberação,estudos de seletividade, avaliação da eficiência, pode ser considerado um modelo e foi seguido por outros programas de controle biológico no Brasil e na América Latina. O programa gerou inúmeras publicações, permitindo a formação de recursos humanos na área, abrindo novas áreas de pesquisa e mostrando que o parasitóide pode ser usado no controle de pragas-chave do algodoeiro, cana-de-açúcar, grãos armazenados, hortaliças, milho, soja e tomateiro. As perspectivas do uso do parasitóides possibilitaram a criação de empresas para comercializá-los no Brasil, transferindo mais facilmente a tecnologia ao usuário. PALAVRAS-CHAVE: Trichogrammatidae, parasitóide de ovos, controle biológico aplicado ABSTRACT -Results of studies with Trichogramma in Brazil are presented, especially those developed at ESALQ/USP in the past two decades . The project involved taxonomy, rearing techniques, biological and behavioral aspects of the pests and parasitoids, pest population dynamics, release techniques, selectivity studies, and efficiency evaluation. It can be considered a model project and has been adopted by other biological control programs in Brazil and Latin America. The program has given rise to a number of publications, allowing the formation of human resources in this area and opening new research areas. The results indicated that the parasitoid can be used to control key pests in cotton, sugarcane, stored grain, vegetables, corn, soybean, and tomato. The perspective of using the parasitoid has stimulated the creation of companies to commercialize it in Brazil, thus more easily transferring this technology to users.

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Análise morfométrica em espécies de Trichogramma (Hymenoptera: Trichogrammatidae)

Cited by 10 publications

References 5 publications

Sequence analysis of the internal transcribed spacer 2 (ITS2) region of rDNA for identifying Trichogramma species and evaluating genetic diversity

Sequence analysis of the internal transcribed spacer 2 (ITS2) region of rDNA for identifying Trichogramma species and evaluating genetic diversity

Systematics of the Trichogrammatidae (Hymenoptera: Chalcidoidea) with a Focus on the Genera Attacking Lepidoptera

Trichogramma in Brazil: feasibility of use after twenty years of research

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