Arboretum scientists have pinpointed how mother plants of a water lily species take control of rearing offspring, part of a 25-year quest to understand how mothers and fathers interact in the creation of a flowering plant seed. Harvard gazette»
The early evolution of flowers remains something of a mystery. As part of her Master’s research, Kristel Schoonderwoerd, PhD Candidate in the Friedman Lab, joined a large international team to reconstruct the ancestral flower based on DNA and floral characteristics of known flowers. The results are published in Nature Communications. more»abstract»
Rebecca Povilus from the Friedman Lab passed her PhD defense on reproduction and seed development in water lilies. Next up for Becky is a post-doctoral position in the Gehring Lab at the MIT Whitehead Institute. Congratulations Dr. Povilus!
Kristel Schoonderwoerd and William (Ned) Friedman closely examined the timing and morphology of ovule and seed development in Frankliniaalatamaha. They found a very unusual situation. The zygote undergoes dormancy shortly after fertilization until the following growing season. Seed development is completed an entire year after fertilization has occurred. The results are published in the BotanicalJournaloftheLinneanSociety. abstract »
The Harvard University Center for the Environment is offering summer research assistantships for Harvard Undergraduates. With positions open in both the Friedman Lab and Wolkovich Lab at the Arboretum, students would have the opportunity to study plant responses to climate change. Interested undergraduates should apply via HUCE.
Welwitschia was the subject of two articles by William (Ned) Friedman published in the American Journal of Botany. In one, Ned describes the development of the female reproductive structures and fertilization in Welwitchia. In the companion commentary, he discusses the evolving names of these structures throughout history. abstract »