The leaves of seed plants can be classified as being either simple or compound according
to their shape. Two hypotheses address the homology between simple and compound …

Abstract Class I KNOTTED1-LIKE HOMEOBOX (KNOX1) genes are expressed in the shoot
apical meristem (SAM) to effect its formation and maintenance. KNOX1 genes are also …

Leaves of seed plants provide an attractive system to study the development and evolution
of form. Leaves show varying degrees of margin complexity ranging from simple, as in …

Striking diversity in size, arrangement, and complexity of leaves can sometimes be seen in
closely related species. One such variation is found between wild tomato species collected …

Across vascular plants, Class 1 KNOTTED1-like (KNOX1) genes appear to play a critical
role in the development of compound leaves. An exception to this trend is found in the …

Flowering plants can have either simple or compound leaves. Compound leaves have an
interesting evolutionary history, and arose independently in the ferns, cycads and flowering …

▪ Abstract knox genes encode homeodomain-containing transcription factors that are
required for meristem maintenance and proper patterning of organ initiation. In plants with …

Leaves of seed plants can be described as simple, where the leaf blade is entire, or
dissected, where the blade is divided into distinct leaflets. Both simple and dissected leaves …

Knotted1-like homeobox (KNOX) proteins are homeodomain transcription factors that
maintain an important pluripotent cell population called the shoot apical meristem, which …

Angiosperm leaves show extensive shape diversity and are broadly divided into two forms;
simple leaves with intact lamina and compound leaves with lamina dissected into leaflets …