The Effect of the Purple Hairy Mutation on Color and Flowering Time in Brassica rapa
Location
Turner Gymnasium
Access Type
Campus Access Only
Start Date
4-17-2024 12:00 PM
End Date
4-17-2024 1:15 PM
College
Lynchburg College of Arts and Sciences
Department
Biology
Keywords
Brassica rapa, mutant
Abstract
Brassica rapa is a small flowering plant that is often used in classroom experiments due to its small size, low-maintenance growing conditions, and quick life cycle. Several mutant lines have been bred and briefly described, although not much is known about the actual genetic changes and therefore all the downstream effects of that mutation. Nine different mutant lines of Brassica rapa were grown to more carefully identify the phenotypes affected by the mutations. Purple Hairy plants were grown over 8 weeks and the color of the hypocotyl and flowering time of standard and mutant plants were measured. All of the hypocotyls of standard Brassica rapa were different shades of green but the hypocotyls of mutant (purple hairy) were different shades of purple because of the anthocyanin in the purple hairy plants. The flowers of the mutant were hypothesized to open later than the standard ones because anthocyanin reduces the stress and takes longer time to flower, but both the flowers of mutant and standard Brassica rapa took almost the same time to open.
Faculty Mentor(s)
Prof. Kim Geier
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The Effect of the Purple Hairy Mutation on Color and Flowering Time in Brassica rapa
Turner Gymnasium
Brassica rapa is a small flowering plant that is often used in classroom experiments due to its small size, low-maintenance growing conditions, and quick life cycle. Several mutant lines have been bred and briefly described, although not much is known about the actual genetic changes and therefore all the downstream effects of that mutation. Nine different mutant lines of Brassica rapa were grown to more carefully identify the phenotypes affected by the mutations. Purple Hairy plants were grown over 8 weeks and the color of the hypocotyl and flowering time of standard and mutant plants were measured. All of the hypocotyls of standard Brassica rapa were different shades of green but the hypocotyls of mutant (purple hairy) were different shades of purple because of the anthocyanin in the purple hairy plants. The flowers of the mutant were hypothesized to open later than the standard ones because anthocyanin reduces the stress and takes longer time to flower, but both the flowers of mutant and standard Brassica rapa took almost the same time to open.