The Effect of X-Rays on Cytological Traits of<i>Tuta absoluta</i>(Lepidoptera: Gelechiidae)

Paladino, Leonela Carabajal; Ferrari, María Edith; Lauría, Juan P.; Cagnotti, Cynthia L.; Šíchová, Jindra; López, Silvia N.

doi:10.1653/024.099.sp107

Cited by 13 publications

(9 citation statements)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In T. absoluta , Carabajal Paladino et al. (2016) determined the haploid chromosome number of n = 29 and identified the largest elements as sex chromosomes morphometrically.…”

Section: Resultsmentioning

confidence: 99%

“…Similar large chromosome pairs were also observed in representatives of the families Pyralidae, Oecophoridae, and Gelechiidae with reduced chromosome numbers, but were considered autosomal fusion products (Ennis 1976). Carabajal Paladino et al. (2016), however, showed that the large chromosome pair corresponds to sex chromosomes in an invasive gelechiid pest, the tomato leafminer Tuta absoluta (Gelechiidae).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sex Chromosome Turnover in Moths of the Diverse Superfamily Gelechioidea

Paladino

Provazníková

Berger

et al. 2019

Genome Biology and Evolution

View full text Add to dashboard Cite

Sex chromosomes play a central role in genetics of speciation and their turnover was suggested to promote divergence. In vertebrates, sex chromosome–autosome fusions resulting in neo-sex chromosomes occur frequently in male heterogametic taxa (XX/XY), but are rare in groups with female heterogamety (WZ/ZZ). We examined sex chromosomes of seven pests of the diverse lepidopteran superfamily Gelechioidea and confirmed the presence of neo-sex chromosomes in their karyotypes. Two synteny blocks, which correspond to autosomes 7 (LG7) and 27 (LG27) in the ancestral lepidopteran karyotype exemplified by the linkage map of Biston betularia (Geometridae), were identified as sex-linked in the tomato leafminer, Tuta absoluta (Gelechiidae). Testing for sex-linkage performed in other species revealed that while LG7 fused to sex chromosomes in a common ancestor of all Gelechioidea, the second fusion between the resulting neo-sex chromosome and the other autosome is confined to the tribe Gnoreschemini (Gelechiinae). Our data accentuate an emerging pattern of high incidence of neo-sex chromosomes in Lepidoptera, the largest clade with WZ/ZZ sex chromosome system, which suggest that the paucity of neo-sex chromosomes is not an intrinsic feature of female heterogamety. Furthermore, LG7 contains one of the major clusters of UDP-glucosyltransferases, which are involved in the detoxification of plant secondary metabolites. Sex chromosome evolution in Gelechioidea thus supports an earlier hypothesis postulating that lepidopteran sex chromosome–autosome fusions can be driven by selection for association of Z-linked preference or host-independent isolation genes with larval performance and thus can contribute to ecological specialization and speciation of moths.

show abstract

“…In T. absoluta , Carabajal Paladino et al. (2016) determined the haploid chromosome number of n = 29 and identified the largest elements as sex chromosomes morphometrically.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sex Chromosome Turnover in Moths of the Diverse Superfamily Gelechioidea

Paladino

Provazníková

Berger

et al. 2019

Genome Biology and Evolution

View full text Add to dashboard Cite

show abstract

“…However, these studies examined only male metaphase I chromosomes, in which light microscopy lacks resolution to identify types of aberrations. A recent study, examining mitotic metaphases and pachytene spermatocytes alongside metaphase I in F 1 males of the tomato leafminer, Tuta absoluta (Meyrick), reported that the irradiation of male parents with a substerilizing dose of 200 Gy induced mainly chromosomal translocations and fragmentation of the chromosomes [69]. However, the most valuable results were obtained using a modified microspreading technique for electron microscopy to study radiation-induced chromosome aberrations in F 1 females and males of the flour moth [63].…”

Section: Inherited Sterility In Lepidopteramentioning

confidence: 99%

“…The above detailed analysis of radiation-induced chromosomal aberrations by electron microscopy [63] also offered an explanation of the higher IS found in F 1 males than in F 1 females, as reported in previous studies [11]. Three factors might contribute to this phenomenon: (i) the ability of males to survive more extensive damage to chromosomes than females, (ii) the occurrence of crossing-over during spermatogenesis, which might increase the number of unbalanced gametes produced by F 1 males but not in the achiasmatic meiosis of females, and (iii) a higher impact of radiation-induced deleterious effects on the fertility of F 1 males, such as defects in spermiogenesis or sperm transfer [69,71].…”

Section: Inherited Sterility In Lepidopteramentioning

confidence: 99%

Advances and Challenges of Using the Sterile Insect Technique for the Management of Pest Lepidoptera

Marec

Vreysen

2019

Insects

View full text Add to dashboard Cite

Over the past 30 years, the sterile insect technique (SIT) has become a regular component of area-wide integrated pest management (AW-IPM) programs against several major agricultural pests and vectors of severe diseases. The SIT-based programs have been especially successful against dipteran pests. However, the SIT applicability for controlling lepidopteran pests has been challenging, mainly due to their high resistance to the ionizing radiation that is used to induce sterility. Nevertheless, the results of extensive research and currently operating SIT programs show that most problems with the implementation of SIT against pest Lepidoptera have been successfully resolved. Here, we summarize the cytogenetic peculiarities of Lepidoptera that should be considered in the development and application of SIT for a particular pest species. We also discuss the high resistance of Lepidoptera to ionizing radiation, and present the principle of derived technology based on inherited sterility (IS). Furthermore, we present successful SIT/IS applications against five major lepidopteran pests, and summarize the results of research on the quality control of reared and released insects, which is of great importance for their field performance. In the light of new research findings, we also discuss options for the development of genetic sexing strains, which is a challenge to further improve the applicability of SIT/IS against selected lepidopteran pests.

show abstract

“…The use of inherent or enhanced resistance in plants, such as resistant host plant cultivars (Cherif et al 2019), botanical extracts (Soares et al 2019), transgenic resistant plants (Selale et al 2017) and enhanced plant resistance via manipulation of soil abiotic factors (e.g., bottom-up effects) (Blazheyski et al 2018;Han et al 2019b), is another promising management strategy for reducing damage by this pest. Novel management technologies, such as RNA interference (RNAi) (Majidiani et al 2019) and sterile insect technique (SIT) (Cagnotti et al 2012(Cagnotti et al , 2016Paladino et al 2016), have been explored recently, which could be considered in the further management of T. absoluta.…”

Section: Discussionmentioning

confidence: 99%

Supercooling capacity and cold tolerance of the South American tomato pinworm, Tuta absoluta, a newly invaded pest in China

Zhang

et al. 2020

J Pest Sci

View full text Add to dashboard Cite

Tuta absoluta is a devastating invasive pest worldwide, causing severe damage to the global tomato industry. It has been recorded recently in the northwestern border areas of China, posing a significant threat to tomato production. It was presumed that the region's winter-related low temperatures would avert the alien species from successfully overwintering. In this study, the supercooling capacity and low-temperature tolerance of this pest were examined under laboratory conditions and its overwintering potential in Xinjiang was estimated. The results showed that the lowest supercooling point was recorded in the adult stage (− 19.47 °C), while the highest (− 18.11 °C) was recorded in the pupal stage. The supercooling points of pupae and adults were not influenced by gender. The Ltemp50 and Ltemp90 of female and male adults were the lowest when exposed to cold for 2 h. However, when the duration of exposure extended from 4 to 10 h, the Ltemp50 and Ltemp90 of female and male pupae were the lowest. Comparison of the lowest Ltemp50 and Ltemp90 with temperatures in January indicated that T. absoluta might not be able to overwinter in most of the northern and central regions of Xinjiang. However, in the southern regions, the extremely low temperature was higher than the Ltemp90, suggesting that T. absoluta has a higher overwintering potential in these regions. These results form a basis for predicting the dispersal potential and possible geographic range of this pest in Xinjiang. In addition, our findings provide guidance for the control of this pest by reducing overwintering shelters.

show abstract

The Effect of X-Rays on Cytological Traits ofTuta absoluta(Lepidoptera: Gelechiidae)

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 13 publications

References 74 publications

Sex Chromosome Turnover in Moths of the Diverse Superfamily Gelechioidea

Sex Chromosome Turnover in Moths of the Diverse Superfamily Gelechioidea

Advances and Challenges of Using the Sterile Insect Technique for the Management of Pest Lepidoptera

Supercooling capacity and cold tolerance of the South American tomato pinworm, Tuta absoluta, a newly invaded pest in China

Contact Info

Product

Resources

About