Genome-wide identification of miR156 and SPL family genes and phenotypic analysis of vegetative phase change in pepper (Capsicum annuum L.)

Identification and Validation of the miR156 Family Involved in Drought Responses and Tolerance in Tea Plants (Camellia sinensis (L.) O. Kuntze)

“…In the present study, the evolutionary characteristics of the csn-miR156 family were analyzed in tea plants. In accordance with previous studies [ 14 ], our multiple sequence alignment results showed that miR156s were highly conserved in different species ( Figure 1 B). Sequences of csn-miR156s were relatively conserved among different plant species, but they also showed a degree of diversity.…”

“…Recently, the strategy of fine-tuning miRNAs based on the regulation of target gene transcription has been highlighted as an effective biotechnological method of improving tolerance to abiotic or biotic stresses in economically vital crops. Several studies have confirmed that many miRNAs, such as miR156 [ 13 , 14 ], miR166 [ 15 ], miR319 [ 16 ], and miR408 [ 17 , 18 ], can improve plant stress resistance to biotic or abiotic stresses by overexpressing or knocking out miRNAs. In apples, MIR156a overexpression weakens salt resistance [ 19 ].…”

“…In general, miR156s regulate the expression of the SQUAMOSA promoter binding protein-like ( SPL ) gene family through transcriptional cleavage or translation inhibition, thus inducing resistance to drought stress. SPLs are a family of plant-specific transcription factors with highly conserved SBP domains that play an essential role in plant growth and development and response to stress [ 14 , 23 , 24 ]. A recent study showed that the miR156-mediated silencing of SPLs improved drought stress resilience and promoted leaf gas exchange and abscisic acid sensitivity [ 25 , 26 ].…”