Evolution: How a Homeobox Gene Cuts the Mustard Leaf

A Gene Fusion at a Homeobox Locus: Alterations in Leaf Shape and lmplications for Morphological Evolution

Compound leaves are seen in many angiosperm genera and are thought to be either fundamentally different from simple leaves or elaborations of simple leaves. The knottedl-l ike homeobox (knox) genes are known to regulate plant development. When overexpressed in homologous or heterologous species, this family of genes can cause changes in leaf morphology, including excessive leaf compounding in t...

A gene fusion at a homeobox locus: alterations in leaf shape and implications for morphological evolution.

Compound leaves are seen in many angiosperm genera and are thought to be either fundamentally different from simple leaves or elaborations of simple leaves. The knotted1-like homeobox (knox) genes are known to regulate plant development. When overexpressed in homologous or heterologous species, this family of genes can cause changes in leaf morphology, including excessive leaf compounding in to...

A WUSCHEL-LIKE HOMEOBOX gene represses a YABBY gene expression required for rice leaf development.

YABBY and WUSCHEL-LIKE HOMEOBOX (WOX) genes have been shown to play important roles in lateral organ formation and meristem function. Here, we report the characterization of functional relationship between rice (Oryza sativa) YAB3 and WOX3 in rice leaf development. Rice YAB3 is closely related to maize (Zea mays) ZmYAB14 and Arabidopsis (Arabidopsis thaliana) FILAMENTOUS FLOWER (FIL), whereas r...

Ancient homeobox gene loss and the evolution of chordate

Ectopic expression of the maize homeobox gene liguleless3 alters cell fates in the leaf.

The semidominant mutation Liguleless3-O (Lg3-O) causes a blade-to-sheath transformation at the midrib region of the maize (Zea mays L.) leaf. We isolated a full-length lg3 cDNA containing a knotted1-like family homeobox. Six Lg3-O partial revertant alleles caused by insertion of a Mutator (Mu) transposon and two deletion derivatives were isolated and used to verify that our knotted1-like cDNA c...