The plant protein phosphatase 2Cs(PP2Cs)play an essential role in response to stress and abscisic acid(ABA)signaling pathway.However,to date,no systemic characterization of the PP2Cs has yet bee n con ducted in potato...The plant protein phosphatase 2Cs(PP2Cs)play an essential role in response to stress and abscisic acid(ABA)signaling pathway.However,to date,no systemic characterization of the PP2Cs has yet bee n con ducted in potato(Solan um tuberosum L.).In the study,a comprehensive research was performed on genome-wide identification and expression analysis of StPP2C genes in potato.A total of 78 potato StPP2C genes were identified based on specific structure of PP2C domain,which were distributed across 11 out of 12 potato chromosomes and divided into 12(A-L)phylogenetic branches.The result from gene duplication an alysis showed that 14 StPP2Cs were in volved in gene tan dem duplication and 8 genes formed fragment duplicati on eve nts,which indicated that both tandem and fragment duplicati on contributed to the expa nsion of the gene family in evolution.Exon-intron structural analysis showed that they had a wide range of exon numbers.Analysis of protei n con servative motif dem on strated that StPP2Cs contained more similar motif structures in the same phyloge netic branches.The c/s-elements in StPP2C gene promoter regions were mainly responded to light,phytohormone and abiotic stress.Most of them exhibited tissue-specific expressi on patter ns,and some members could differe ntially express un der abiotic stress.The evidenee suggested that StPP2C genes may contribute to different functions in several physiological stress and environmental stress conditi ons.This study could provide new in sights to further in vestigate StPP2C functional characteristics responding to various stresses in potato.展开更多
基金This research was supported by the Nationml Natural Science Foundation of China(31660416 and 31560413)and the Potato In dustry Tech no logy System of Gansu Provi nee,China(GARS-03-P1).
文摘The plant protein phosphatase 2Cs(PP2Cs)play an essential role in response to stress and abscisic acid(ABA)signaling pathway.However,to date,no systemic characterization of the PP2Cs has yet bee n con ducted in potato(Solan um tuberosum L.).In the study,a comprehensive research was performed on genome-wide identification and expression analysis of StPP2C genes in potato.A total of 78 potato StPP2C genes were identified based on specific structure of PP2C domain,which were distributed across 11 out of 12 potato chromosomes and divided into 12(A-L)phylogenetic branches.The result from gene duplication an alysis showed that 14 StPP2Cs were in volved in gene tan dem duplication and 8 genes formed fragment duplicati on eve nts,which indicated that both tandem and fragment duplicati on contributed to the expa nsion of the gene family in evolution.Exon-intron structural analysis showed that they had a wide range of exon numbers.Analysis of protei n con servative motif dem on strated that StPP2Cs contained more similar motif structures in the same phyloge netic branches.The c/s-elements in StPP2C gene promoter regions were mainly responded to light,phytohormone and abiotic stress.Most of them exhibited tissue-specific expressi on patter ns,and some members could differe ntially express un der abiotic stress.The evidenee suggested that StPP2C genes may contribute to different functions in several physiological stress and environmental stress conditi ons.This study could provide new in sights to further in vestigate StPP2C functional characteristics responding to various stresses in potato.
