Genomic Analysis of the Caleosin Family in Theaceae Reveals Lineagespecific Evolutionary Patterns
Zaibao Zhang1, Tao Xiong2, Tianyu Fan1
1School of Life and Health Science, Huzhou College, Huzhou, Zhejiang, China.
Introduction:
Caleosins are recognized as the key proteins found in Lipid Droplets (LDs) and are crucial for the creation, maintenance, and breakdown of LDs. Nevertheless, our understanding of caleosins remains limited within Theaceae, a prominent botanical family encompassing economically significant tea and oil tea species.
Methods:
In this research, we conducted a comprehensive genome-wide exploration and examination of the caleosin family in Theaceae species with sequenced genomes. The gene number of caleosin was similar among Theaceae species. Segmental duplication was the main form of caleosin expansion in Shuchazao (SCZ), Huangdan (HD), Biyun (BY), Tieguanyin (TGY), Longjing (LJ), C. lanceoleosa (Cla) and C. chekiangoleosa (CCH). Synteny analysis revealed one-to-more and more-to-one collinear relationships of caleosin genes among Theaceae species.
Results:
Caleosins in Theaceae are categorized into either the H-family or the L-family, each exhibiting distinct motif structures and physicochemical properties. Expression analysis revealed an apparent flower-predominant expression pattern of caleosin genes in Theaceae species. In addition, most paralogous pairs displayed expression divergence.
Conclusion:
This research enhanced our understanding of the lineage-specific evolution of caleosin genes in Theaceae, and is valuable for future functional analysis of this gene family in tea and oil-tea species.
Related Concept Videos
Evolutionary Relationships through Genome Comparisons
Asexual Reproduction
Gene Evolution - Fast or Slow?
In contrast, regions which code...
Cis-regulatory Sequences
C4 Pathway and CAM
C4 Pathway
The C4 pathway is used by plants such as...
Genetics of Speciation


