Long-read sequencing uncovers the adaptive topography of a carnivorous plant genome

Our carnivorous bladderwort genome paper came out today in PNAS!

“Carnivorous plants capture and digest animal prey for nutrition. In addition to being carnivorous, the humped bladderwort plant, Utricularia gibba, has the smallest reliably assembled flowering plant genome. We generated an updated genome assembly based on single-molecule sequencing to address questions regarding the bladderwort’s genome adaptive landscape. Among encoded genes, we segregated those that could be confidently distinguished as having derived from small-scale versus whole-genome duplication processes and showed that conspicuous expansions of gene families useful for prey trapping and processing derived mainly from localized duplication events. Such small-scale, tandem duplicates are therefore revealed as essential elements in the bladderwort’s carnivorous adaptation.” Read the entire manuscript here.

Don’t Bug this Beetle

Recently, our research was featured on SDSU NewsCenter: ‘Don’t Bug this Beetle’.

‘Brachinus elongatulus, more commonly known as the bombardier beetle, is a fellow you do not want to agitate. When this beetle feels threatened, it blasts boiling hot, noxious chemicals from its body in rapid-fire fashion. And the smell is not pleasant either.

“It’s a foul-smelling liquid that is quite shocking and distasteful to predators such as toads,” said Tanya Renner, an assistant professor in San Diego State University’s biology department. If a predator tries to eat the bombardier, it gets a mouthful of this unpalatable liquid.’

Read the full SDSU NewsCenter Article here.

International Carnivorous Plant Society

The 2016 ICPS conference was held at the Royal Botanic Gardens, Kew in England this August 2016. It was a fantastic meeting spanning topics in carnivorous plant systematics, evo-devo, molecular evolution, ecology, biomechanics, and horticulture. We had a chance to visit the famous Kew Herbarium, view a type specimen ofNepenthes rajah, and see some original correspondences with Joseph Hooker. Sir David Attenborough even visited us for a short but glorious moment to receive a painting of Nepenthes attenboroughii! We ended our meeting with a visit to Down House, the home of Charles Darwin. All in all, a great meeting. See you at the next meeting!