Genome-wide identification and characterization of JAZ gene family in upland cotton (Gossypium hirsutum).

Plant JAZ (Jasmonate ZIM-domain) proteins play versatile roles in multiple aspects of plant development and defense. However, little is known about the JAZ family in allotetraploid upland cotton (Gossypium hirsutum) so far. In this study, 30 non-redundant JAZ genes were identified in upland cotton through genome-wide screening.

A cotton (Gossypium hirsutum) gene encoding a NAC transcription factor is involved in negative regulation of plant xylem development.

NAC proteins that compose of one large family of plant specific transcription factors (TF) play the important roles in many biological processes (such as morphogenesis, development, senescence and stress signal transduction). In this study, a gene (designated as GhXND1) encoding a NAC transcription factor was identified in cotton. Sequence analysis indicated that GhXND1 gene contains two introns inserted in its open reading frame (ORF).