Genome-wide analysis of the MADS-box gene family in Lonicera japonica and a proposed floral organ identity model.

ABSTRACT:

Background

Lonicera japonica Thunb. is widely used in traditional Chinese medicine. Medicinal L. japonica mainly consists of dried flower buds and partially opened flowers, thus flowers are an important quality indicator. MADS-box genes encode transcription factors that regulate flower development. However, little is known about these genes in L. japonica.

Results

In this study, 48 MADS-box genes were identified in L. japonica, including 20 Type-I genes (8 Mα, 2 Mβ, and 10 Mγ) and 28 Type-II genes (26 MIKC^c and 2 MIKC^*). The Type-I and Type-II genes differed significantly in gene structure, conserved domains, protein structure, chromosomal distribution, phylogenesis, and expression pattern. Type-I genes had a simpler gene structure, lacked the K domain,

SUBMITTER: Lin Y 

PROVIDER: S-EPMC10408238 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature