Genetics of a sex-linked recessive red eye color mutant of the tarnished plant bug, Lygus lineolaris - Open Journal of Animal Sciences

OJAS > Vol.3 No.2, June 2013

Open Journal of Animal Sciences

Volume 3, Issue 2 (June 2013)

ISSN Print: 2161-7597 ISSN Online: 2161-7627

Google-based Impact Factor: 1.39 Citations h5-index & Ranking

Genetics of a sex-linked recessive red eye color mutant of the tarnished plant bug, Lygus lineolaris ()

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DOI: 10.4236/ojas.2013.32A001 7,073 Downloads 10,027 Views Citations

Author(s)

Margaret Louise Allen

Affiliation(s)

Biological Control of Pests Research Unit, USDA Agricultural Research Service, Stoneville, USA.

ABSTRACT

An inbred colony of the tarnished plant bug, Lygus lineolaris (Palisot de Beauvois) (Miridae: Hemiptera), was observed to contain specimens with abnormal traits including red eyes, deformed antennae, and deformed legs. These specimens were isolated and back crossed to create stable phenotypic strains. The only successful strain established was a red eyed strain named Cardinal. The trait was more prevalent and stable in males, suggesting that it could be sex linked. To test the hypothesis that the trait was based on a recessive sex linked allele, classical genetic crosses were performed. The hypothesis was confirmed, and the eye color phenotype was measured and characterized using color analysis software. The trait is similar to other red eyed phenotypes described in this species, but is clearly based on a different mutation since it is sex linked rather than autosomal. The results of crossing experiments also suggest that inbreeding in this species results in substantial fitness cost to laboratory insects.

KEYWORDS

Genetics; Inbreeding; Fitness; Pigmentation; Ommochromes; Antennae; Spineless

Share and Cite:

Allen, M. (2013) Genetics of a sex-linked recessive red eye color mutant of the tarnished plant bug, Lygus lineolaris. Open Journal of Animal Sciences, 3, 1-9. doi: 10.4236/ojas.2013.32A001.

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