Morphological and Genetic Variation in Mexican Wild Populations of<i>Tamarixia radiata</i>(Hymenoptera: Eulophidae)

Peña-Carrillo, Kenzy I.; González-Hernández, Alejandro; López-Arroyo, J. Isabel; Mercado-Hernández, Roberto; Lara, Susana Favela

doi:10.1653/024.098.0413

Cited by 7 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the previous work showed a high number of haplotypes H2 samples obtained from the northeast states of Nuevo León, and Tamaulipas and the western states of Colima and Michoacán, and H1 was only obtained from the Tamaulipas state of Mexico. These findings suggest gene flow due to the release and introduction of T. radiata between countries [61]. The high haplotype diversity and nucleotide diversity (Hd > 0.78, π > 0.24) observed in overall populations from China represent stable populations with a long evolutionary history [65], and these populations are the contributors to the nucleotide diversity of T. radiata.…”

Section: Discussionmentioning

confidence: 86%

See 1 more Smart Citation

Genetic Diversity of Tamarixia radiata Populations and Their Associated Endosymbiont Wolbachia Species from China

et al. 2021

View full text Add to dashboard Cite

Tamarixia radiata is one of the established biocontrol pests against the major Asian citrus psyllid, Diaphorina citri, a vector of Candidatus Liberibacter that is a causal agent of citrus Huanglongbing (HLB) disease. Updated information and regional exploration on biocontrol pests are important elements for effective disease management strategies. In this study, the diversity and parasitism rate of T. radiata populations were evaluated. Due to the importance of the host–parasitoid relationship, the presence of Wolbachia as an endosymbiont was also investigated. The parasitism rate of various T. radiata populations from Ecuador and China ranged between 57.27% and 66.32%, respectively, with a non-significant emergence rate and a statistically similar sex ratio. Sequence analysis of ITS and COI from T. radiata populations was consistent with the morphological hypothesis that the collections represent a single species, whereas phylogeny of the wsp gene confirmed the presence of Wolbachia pipientis as an endosymbiont within T. radiata populations. Based on partial COI sequences, the maximum genetic diversity such as total haplotype diversity (Hd = 0.788), nucleotide, diversity (π = 0.2439), and average nucleotide difference (k = 171.844) was also estimated for different T. radiata populations. Furthermore, neutrality tests based on COI sequences indicated an overall contraction in T. radiata populations, whereas an expansion trend was observed in associated W. pipientis strains. This study clearly demonstrated the presence of genetically diverse T. radiata populations that were able to parasitize D. citri effectively, and these can be further explored as promising biocontrol candidates in integrated pest management strategies to solve citriculture economic loss caused by D. citri.

show abstract

Section: Discussionmentioning

confidence: 86%

“…Previous research revealed that a series of complex environmental factors had significant effects on survival, parasitism, and reproduction of T. radiata. Accordingly, the highest parasitism percentage was observed in summer and the lowest in winter in Sao Paulo [61].…”

Section: Discussionmentioning

confidence: 88%

Genetic Diversity of Tamarixia radiata Populations and Their Associated Endosymbiont Wolbachia Species from China

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Although, the reason for this morphological dimorphism is unclear in parasitoids, it might be related to the functional complexity of antennae between sexes in different species. Nonetheless, regarding Eulophidae, funicular segment size was different in holotypes of P. elaeisis from different countries in South America (Delvare & Lasalle, 1993), and relevant differences in number of funicular segments and antenna size of males were found in population of T. radiata (Peña-Carrillo et al, 2015) suggesting that the size and/or number of antennomers may also vary according to geographic position in populations from the same species. Furthermore, the antennal size may be associated with sensilla number and size to enlarge the surface area of sensory receptors.…”

Section: Discussionmentioning

confidence: 99%

Antennal Sensilla and Sexual Dimorphism of the Parasitoid Trichospilus pupivorus (Hymenoptera: Eulophidae)

et al. 2016

View full text Add to dashboard Cite

Sensory structures (sensilla) of insects are present in high number in the antennae are important for perceiving environmental cues. Thus, sensilla play an important role in the localization, discrimination, and acceptance of a possible host by parasitoid insects. The sensilla, classified according to their shape, size, and distribution, may also show sexual dimorphism in insects. The types and distribution of antennal sensilla in female and male parasitoid Trichospilus pupivorus (Ferriere, 1930) (Hymenoptera: Eulophidae) were evaluated. T. pupivorus females had longer antennae than males. Both males and females have ten sensilla types with higher abundance of placoid sensilla in females, which suggest a possible functional dimorphism.

show abstract

“…Liberibacter asiaticus, such threshold is not applicable because studies have shown low transmission associated with a single D. citri adult [11] and even more when nymphal development occurs in healthy plants [9,13,67]. Furthermore, there are diverse natural enemies contributing to the reduction in the vector population [68][69][70][71] that would potentially and naturally assist the prevention of the vector from reaching efficient transmission levels. Hence, it is feasible to consider the use of SPRT sequential plans to support decision making in vector control.…”

Section: Discussionmentioning

confidence: 99%

“…This avoids intensive and extensive chemical control of the vector such as the program that exists in Brazil [22]. Furthermore, it would increase the opportunity for biological control [68][69][70][71]. In this manner, the current production systems could move towards the sustainable citrus industry of the future.…”

Section: Discussionmentioning

confidence: 99%

Spatial Distribution and Development of Sequential Sampling Plans for Diaphorina citri Kuwayama (Hemiptera: Liviidae)

Díaz-Padilla

López-Arroyo²,

Guajardo-Panes

et al. 2021

Agronomy

Self Cite

View full text Add to dashboard Cite

Vector control in huanglongbing management has been conducted on a calendar basis resulting in high production costs. We addressed this issue and proposed a sequential sampling plan to support decision making for intervention against Diaphorina citri Kuwayama, which is involved in the transmission of the bacteria Candidatus Liberibacter asiaticus, associated with such lethal disease. We analyzed 3,264,660 records from samples gathered from the Mexican trapping program for the monitoring of D. citri; it included weekly inspection of 86,004 yellow sticky traps distributed in the country. Spatial distribution of the insect, estimation of a common k (kc), and sequential sampling plans based on Sequential Probability Ratio Test (SPRT) were determined. Taylor’s power law coefficients were ≥1 indicating aggregation in the spatial distribution of the insect. Common k ranged from 0.0183 to 0.2253 and varied independently of geographic zone or citrus species. We obtained 18 sequential sampling plans, one for each state. In the Average Sample Number (ASN) function, the minimal number of samples to make a decision ranged from 17 to 65. In the Operational Characteristic (OC) function, probabilities for a correct intervention at the threshold of 0.2 D. citri adults/trap in most cases were above 80%. In a field evaluation, the application of sampling plans yielded savings obtained by reduction in the number of interventions for insect control.

show abstract

Morphological and Genetic Variation in Mexican Wild Populations ofTamarixia radiata(Hymenoptera: Eulophidae)

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 7 publications

References 23 publications

Genetic Diversity of Tamarixia radiata Populations and Their Associated Endosymbiont Wolbachia Species from China

Genetic Diversity of Tamarixia radiata Populations and Their Associated Endosymbiont Wolbachia Species from China

Antennal Sensilla and Sexual Dimorphism of the Parasitoid Trichospilus pupivorus (Hymenoptera: Eulophidae)

Spatial Distribution and Development of Sequential Sampling Plans for Diaphorina citri Kuwayama (Hemiptera: Liviidae)

Contact Info

Product

Resources

About