ArticleG3 (Bethesda, Md.)2025
A reference genome for Trichogramma kaykai: a tiny desert-dwelling parasitoid wasp with competing sex-ratio distorters.
Article in G3 (Bethesda, Md.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- B chromosomes put the 'super' in supernumerary.Trends in genetics : TIG · 2026Review
- Genomics and reproductive biology of Leptopilina malgretoutensis (sp. nov.): an asexual parasitoid of Caribbean Drosophila.Genetics · 2026Article
Corrections and comments
- Update of
Authors and funding
2 authors.
Funding
Abstract
The tiny parasitoid wasp Trichogramma kaykai inhabits the Mojave Desert of the southwest United States. Populations of this tiny insect variably host up to 2 different sex-distorting genetic elements: (1) the endosymbiotic bacterium Wolbachia which induces the parthenogenetic reproduction of females, and (2) a B-chromosome, "Paternal Sex Ratio" (PSR), which converts would-be female offspring to PSR-transmitting males. We report here the genome of a Wolbachia-infected T. kaykai isofemale colony KSX58. Using Oxford Nanopore sequencing, we produced a final genome assembly of 205 Mbp with 34× coverage, consisting of 154 contigs with an N50 of 2.2 Mbp. The assembly is quite complete, with 92.67% complete Hymenoptera BUSCOs recovered: a very high score for Trichogrammatids that have been previously characterized for having high levels of core gene losses. We also report a complete mitochondrial genome for T. kaykai, and an assembly of the associated Wolbachia, strain wTkk. Finally, we identified copies of the parthenogenesis-inducing (PI) genes pifA and pifB in a remnant prophage region of the wTkk genome and compared their evolution to pifs from a suite of other PI Wolbachia. The T. kaykai assembly is one of the highest quality genome assemblies for the genus to date and will serve as a great resource for understanding the evolution of sex and selfish genetic elements.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.