The mechanism for explosive seed dispersal in Cardamine hirsuta (Brassicaceae)

Morphomechanical Innovation Drives Explosive Seed Dispersal

How mechanical and biological processes are coordinated across cells, tissues, and organs to produce complex traits is a key question in biology. Cardamine hirsuta, a relative of Arabidopsis thaliana, uses an explosive mechanism to disperse its seeds. We show that this trait evolved through morphomechanical innovations at different spatial scales. At the organ scale, tension within the fruit wa...

The genetic architecture of petal number in Cardamine hirsuta.

Invariant petal number is a characteristic of most flowers and is generally robust to genetic and environmental variation. We took advantage of the natural variation found in Cardamine hirsuta petal number to investigate the genetic basis of this trait in a case where robustness was lost during evolution. We used quantitative trait locus (QTL) analysis to characterize the genetic architecture o...

01-P015 Dissected leaf development in Cardamine hirsuta

miRNA 5 end being fully complementary to the target mRNA, with binding of the 3 miRNA end varying. Many predictive algorithms have been produced to identify potential miRNA-target pairs. However many ignore full and near-full complementarity miRNA-mRNA pairs as they are considered unusual or potential false positives. However miRNA-mRNA pairs of this nature have been previously verified as func...

The seed dispersal catapault of Cardamine parviflora is efficient but unreliable

The Cardamine hirsuta genome offers insight into the evolution of morphological diversity

Xiangchao Gan, Angela Hay, Michiel Kwantes, Georg Haberer, Asis Hallab, Raffaele Dello Ioio, Hugo Hofhuis, Bjorn Pieper, Maria Cartolano, Ulla Neumann, Lachezar A. Nikolov, Baoxing Song, Mohsen Hajheidari, Roman Briskine, Evangelia Kougioumoutzi, Daniela Vlad, Suvi Broholm, Jotun Hein, Khalid Meksem, David Lightfoot, Kentaro K. Shimizu, Rie Shimizu-Inatsugi, Martha Imprialou, David Kudrna, Rod ...