##### PUB RECORD ##### ## 10.1186/s12864-022-08620-7 35581536 Liu, Zhang, et. al., 2022 "Liu C, Zhang Q, Dong J, Cai C, Zhu H, Li S. Genome-wide identification and characterization of mungbean CIRCADIAN CLOCK ASSOCIATED 1 like genes reveals an important role of VrCCA1L26 in flowering time regulation. BMC Genomics. 2022 May 17;23(1):374. doi: 10.1186/s12864-022-08620-7. PMID: 35581536; PMCID: PMC9115955." ## PMID- 35581536 OWN - NLM STAT- MEDLINE DCOM- 20220519 LR - 20220716 IS - 1471-2164 (Electronic) IS - 1471-2164 (Linking) VI - 23 IP - 1 DP - 2022 May 17 TI - Genome-wide identification and characterization of mungbean CIRCADIAN CLOCK ASSOCIATED 1 like genes reveals an important role of VrCCA1L26 in flowering time regulation. PG - 374 LID - 10.1186/s12864-022-08620-7 [doi] LID - 374 AB - BACKGROUND: CIRCADIAN CLOCK ASSOCIATED 1 like (CCA1L) proteins are important components that participate in plant growth and development, and now have been characterized in multiple plant species. However, information on mungbean CCA1L genes is limited. RESULTS: In this study, we identified 27 VrCCA1L genes from the mungbean genome. VrCCA1L genes were unevenly distributed on 10 of the 11 chromosomes and showed one tandem and two interchromosomal duplication events. Two distinct kinds of conserved MYB domains, MYB 1 and MYB 2, were found, and the conserved SHAQK(Y/F) F sequence was found at the C terminus of each MYB 2 domain. The VrCCA1Ls displayed a variety of exon-intron organizations, and 24 distinct motifs were found among these genes. Based on phylogenetic analysis, VrCCA1L proteins were classified into five groups; group I contained the most members, with 11 VrCCA1Ls. VrCCA1L promoters contained different types and numbers of cis-acting elements, and VrCCA1Ls showed different expression levels in different tissues. The VrCCA1Ls also displayed distinct expression patterns under different photoperiod conditions throughout the day in leaves. VrCCA1L26 shared greatest homology to Arabidopsis CCA1 and LATE ELONGATED HYPOCOTYL (LHY). It delayed the flowering time in Arabidopsis by affecting the expression levels of CONSTANS (CO), FLOWERING LOCUS T (FT), and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1). CONCLUSION: We identified and characterized 27 VrCCA1L genes from mungbean genome, and investigated their spatio-temporal expression patterns. Further analysis revealed that VrCCA1L26 delayed flowering time in transgenic Arabidopsis plants. Our results provide useful information for further functional characterization of the VrCCA1L genes. CI - (c) 2022. The Author(s). FAU - Liu, Chenyang AU - Liu C AD - College of Life Sciences, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao Agricultural University, Qingdao, 266109, China. FAU - Zhang, Qianqian AU - Zhang Q AD - College of Life Sciences, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao Agricultural University, Qingdao, 266109, China. FAU - Dong, Jing AU - Dong J AD - College of Life Sciences, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao Agricultural University, Qingdao, 266109, China. FAU - Cai, Chunmei AU - Cai C AD - College of Life Sciences, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao Agricultural University, Qingdao, 266109, China. FAU - Zhu, Hong AU - Zhu H AD - College of Agronomy, Qingdao Agricultural University, Qingdao, 266109, China. zhuhong198812@126.com. FAU - Li, Shuai AU - Li S AD - College of Life Sciences, Key Lab of Plant Biotechnology in Universities of Shandong Province, Qingdao Agricultural University, Qingdao, 266109, China. li2014shuai@qau.edu.cn. LA - eng GR - 31971898, 32171979/National Natural Science Foundation of China/ PT - Journal Article DEP - 20220517 PL - England TA - BMC Genomics JT - BMC genomics JID - 100965258 RN - 0 (Arabidopsis Proteins) SB - IM MH - *Arabidopsis/metabolism MH - *Arabidopsis Proteins/genetics MH - *Circadian Clocks/genetics MH - Circadian Rhythm/genetics MH - Flowers MH - Gene Expression Regulation, Plant MH - Photoperiod MH - Phylogeny MH - *Vigna/genetics PMC - PMC9115955 OTO - NOTNLM OT - CCA1 OT - Flowering time OT - Mungbean OT - Photoperiod OT - VrCCA1L26 COIS- The authors declare that they have no competing interests. EDAT- 2022/05/18 06:00 MHDA- 2022/05/20 06:00 PMCR- 2022/05/17 CRDT- 2022/05/17 23:35 PHST- 2022/01/06 00:00 [received] PHST- 2022/05/11 00:00 [accepted] PHST- 2022/05/17 23:35 [entrez] PHST- 2022/05/18 06:00 [pubmed] PHST- 2022/05/20 06:00 [medline] PHST- 2022/05/17 00:00 [pmc-release] AID - 10.1186/s12864-022-08620-7 [pii] AID - 8620 [pii] AID - 10.1186/s12864-022-08620-7 [doi] PST - epublish SO - BMC Genomics. 2022 May 17;23(1):374. doi: 10.1186/s12864-022-08620-7.