Presentation Title

Exploring the Effects of Diet on the Phenotype of 5th Instar White-lined Sphynx Moth (Hyles lineata ) Caterpillars

Faculty Mentor

Dustin VanOverbeke

Start Date

17-11-2018 8:30 AM

End Date

17-11-2018 10:30 AM

Location

CREVELING 102

Session

POSTER 1

Type of Presentation

Poster

Subject Area

biological_agricultural_sciences

Abstract

Exploring the Effects of Diet on the Phenotype of 5th Instar White-lined Sphynx Moth (Hyles lineata ) Caterpillars

Abstract

Polyphenism is the ability for multiple phenotypes to come from one genotype. This is beneficial when living in unpredictable environments and useful for creating camouflage from predators. The objective of this study was to see whether diet is responsible for the polyphenism seen in H. lineata caterpillars and if it is due to the pigments or defenses in the plants. Hyles lineata caterpillars were reared on different diets containing either lutein, rutin, or ellagitannins. Caterpillars reared on lutein and rutin diets did not display significant color changes. Caterpillars exhibited a noticeable change in 5th instar phenotype when ellagitannins were present in the diet, indicating that ellagitannins are one factor that causes an epigenetic shift and the resulting change in phenotype.

Key Words

Polyphenism

Phenotype

Genotype

Diet

Defense Compounds

Rutin

Lutein

Ellagitannins

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Nov 17th, 8:30 AM Nov 17th, 10:30 AM

Exploring the Effects of Diet on the Phenotype of 5th Instar White-lined Sphynx Moth (Hyles lineata ) Caterpillars

CREVELING 102

Exploring the Effects of Diet on the Phenotype of 5th Instar White-lined Sphynx Moth (Hyles lineata ) Caterpillars

Abstract

Polyphenism is the ability for multiple phenotypes to come from one genotype. This is beneficial when living in unpredictable environments and useful for creating camouflage from predators. The objective of this study was to see whether diet is responsible for the polyphenism seen in H. lineata caterpillars and if it is due to the pigments or defenses in the plants. Hyles lineata caterpillars were reared on different diets containing either lutein, rutin, or ellagitannins. Caterpillars reared on lutein and rutin diets did not display significant color changes. Caterpillars exhibited a noticeable change in 5th instar phenotype when ellagitannins were present in the diet, indicating that ellagitannins are one factor that causes an epigenetic shift and the resulting change in phenotype.

Key Words

Polyphenism

Phenotype

Genotype

Diet

Defense Compounds

Rutin

Lutein

Ellagitannins