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← All articlesEditorial brief · abstract-levelScore 55/100Confidence medium
biorxiv2026-08-15mtDNAmethodsentomology

SDA-500 is a new Anopheles stephensi cell line, stamped male by karyotype and COI

An embryo-derived A. stephensi (SDA-500) line grows in vitro, is identified by mitochondrial COI barcoding, and is at least partly male (diploid karyotype with a Y). TransIT-PRO transfects better than Lipofectamine reagents. Among tested promoters, Anopheles gambiae polyubiquitin is the strongest, most consistent driver in a dual-luciferase assay. The line is a functional-genomics chassis for an urban malaria vector. Mitochondria are the species barcode.

Mito.news · at a glance

Signal profile (abstract-level)

mtDNA · methods · entomology

Score 55/100BIORXIVmedium confidencemtDNA
55
Importance
50
Mito signal
25
Dysfunction
75
Evidence
23
Translational

Editorial signal profile from the abstract (importance score, mito keywords, dysfunction tags, evidence density, translational cues). Not a figure reproduced from the preprint PDF.

Finding. Anopheles stephensi, the urban malaria mosquito, now has an embryo-derived cell line that keeps growing, answers to a COI barcode, and carries a Y in at least some nuclei. TransIT-PRO gets DNA in. Anopheles gambiae’s polyubiquitin promoter drives best among the reporters tested. Mitochondria were used as an ID card.

Why this paper matters

Functional genomics in this vector has been tool-poor. A validated line is infrastructure. The mitochondrial content is a barcode sentence.

What they actually measured

Line establishment, COI, karyotype, transfection, promoter assay.

How to read the score

55.

What to do with it

If you do A. stephensi molecular work, try SDA-500 and the Ag polyubiquitin promoter. Ignore for OXPHOS. The directional implication is that this species finally has a genetically stamped in-vitro chassis.

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Source preprint

Development and validation of an SDA-500 Anopheles stephensi cell line for molecular studies

10.64898/2026.08.14.744812

Kavil S, Jinmi D, Alphey L, Anderson MAE.

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