Fig. 3: Heat map showing differential expression of CaNHL genes based on an RNA-seq transcriptomic analysis.

a Expression of CaNHL genes in different pepper tissues. The columns represent the leaves, stems, roots, flowers, petals, stamens, and fruits, from left to right. b Expression profiles of CaNHL genes in response to various stresses. From left to right, the columns indicate the mock; abiotic stresses such as cold, heat, and NaCl; and hormone treatments such as SA, ABA, and JA.