We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Characterization of the MIKC<sup>C</sup> ‑type MADS‑box gene family in blueberry and its possible mechanism for regulating fowering in response to the chilling requirement.
- Authors
Sui‑Lin Zhang; Yan Wu; Xiao‑Han Zhang; Xin Feng; Hui‑Ling Wu; Bing‑Jie Zhou; Ya‑Qian Zhang; Man Cao; Zhi‑Xia Hou
- Abstract
The MIKCC-type MADS-box gene family is involved in the regulation of fower development. A total of 109 members of the MIKCC-type MADS-box gene family were identifed in blueberry. According to the phylogenetic tree, these 109 MIKCC-type MADS-box proteins were divided into 13 subfamilies, which were distributed across 40 Scafolds. The results of the conserved motif analysis showed that among 20 motifs, motifs 1, 3, and 9 formed the MADS-box structural domain, while motifs 2, 4, and 6 formed the K-box structural domain. The presence of 66 pairs of fragment duplication events in blueberry suggested that gene duplication events contributed to gene expansion and functional diferentiation. Additionally, the presence of cis-acting elements revealed that VcFLC2, VcAG3, and VcSVP9 might have signifcant roles in the endo-dormancy release of fower buds. Meanwhile, under chilling conditions, VcAP3.1 and VcAG7 might facilitate fower bud dormancy release. VcSEP11 might promote fowering following the release of endo-dormancy, while the elevated expression of VcAP1.7 (DAM) could impede the endo-dormancy release of fower buds. The efect of gibberellin (GA4+7) treatment on the expression pattern of MIKCC-type MADS-box genes revealed that VcAP1.4, VcAP1.6, VcAP3.1, VcAG3, and VcFLC2 might promote fower bud endo-dormancy release, while VcAP3.2, VcSEP11, and VcSVP9 might inhibit its endo-dormancy release. These results indicated that VcAP1.4, VcAP1.6, VcAP1.7 (DAM), VcAP3.1, VcAG3, VcAG7, VcFLC2, and VcSVP9 could be selected as key regulatory promoting genes for controlling the endo-dormancy of blueberry fower buds.
- Publication
Planta: An International Journal of Plant Biology, 2024, Vol 259, Issue 4, p1
- ISSN
0032-0935
- Publication type
Article