Project Description: 

During floral development, patterns of pigment are painted on to the petals of many plants, and these pigments often serve to attract and direct bee pollinators toward pollen and nectar rewards. We have found several natural variants affecting the nectar guide pigmentation patterns of the common monkeyflower in both the visible and UV spectrums, and we are pursuing genetic studies to determine what specific molecular changes have occurred to disrupt these patterns. We have also been examinng natural variation in the patterning of UV absorbent pigments in sunflower petals, the genetics of underlying this variation, and the ways that different patterns alter floral heat load and pollinator visitation. In doing so, we hope to learn more about the mechanisms that specify where and when petal cells develop pigmentation and the ecological processes that maintain variation in these patterns in nature.

Department: 
PMB
Undergraduate's Role: 

The undergraduate researchers will grow, care for, and score pigmentation phenotypes on monkeyflowers or sunflowers being used for studies of natural variation in the greenhouse, growth chambers, or field environment. They will also collect tissue for DNA or RNA extraction, and depending on progress and success, may also take part in DNA/RNA isolation and genotyping/qRT-PCR efforts. They may also be involved in recorded and then scoring videos of pollinator visitation. The student will be encouraged to participate in weekly Blackman lab group meetings as well.

Undergraduate's Qualifications: 

Students with strong interests in plant-environment interaction, evolution, and ecology will find the experience most rewarding. Attention to detail and good record keeping skills are essential. The student should be comfortable and enthusiastic about intermittently working in greenhouse, growth chamber, or field conditions for extended periods, and they will be expected to follow guidelines for safely doing so. 

Location: 
On Campus
Hours: 
6-9 hours
Project URL: 
https://nature.berkeley.edu/blackmanlab/