On the role of genes determinate, late flowering and fasciata in the morphogenesis of pea inflorescence

Abstract

The effects of mutations determinate (det), late flowering (lf), fasciata (fa, fas), and nodulation4 (nod4) on development of inflorescence in pea were characterized. All listed mutations distort functions of stem apical meristem and influence development of axillary flower-bearing axis (short paracladium) leading to formation of terminal flower and bracts. Structure of flower terminating short paracladium was analyzed and hypothesis on origin of its structure was proposed. Scheme of genetic network in control of inflorescence development in pea was designed.

Keywords

• bract
• compound inflorescence
• determinate growth
• fasciation
• Pisum sativum L.
• terminal flower