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,2016,36(7):1294-1301
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犃犾犮狅犺狅犾犇犲犺狔犱狉狅犵犲狀犪狊犲狌狀犱犲狉犃犫犻狅狋犻犮犛狋狉犲狊狊犻狀犆犪狉狉狅狋
LIUYanjun,MAJing,WANGGuanglong,HUANGWei,WANGFeng,XIONGAisheng
(StateKeyLaboratoryofCropGeneticsandGermplasmEnhancement,MinistryofAgricultureKeyLaboratoryofBiologyand
GermplasmEnhancementofHorticulturalCropsinEastChina,ColegeofHorticulture,NanjingAgriculturalUniversity,Nan
jing210095,China)
犃犫狊狋狉犪犮狋:Here,thegeneencodingDcCADwereclonedfromcarrotcultivar‘Kurodagosun’withRTPCR
method.Thelengthof犇犮犆犃犇was1074bp,andencoding357aminoacids.TheDcCADmaybelongto
hydrophilicprotein.PhylogeneticanalysisshowedthatDcCAD closedto CADfrom tomato(XP_
010314515.1).QuantitativerealtimePCRanalysisshowedthattheexpressionprofilesofthe犇犮犆犃犇gene
aresignificantlydifferentindifferenttissues(root,leafblade,andpetiole)ofcarrot.Relativeexpression
levelofthe犇犮犆犃犇geneisleafblade>root>petiole.The犇犮犆犃犇geneisresponsivetovariousabiotic
stresses,suchasheat(38℃),cold(4℃),drought(20%PEG)andsalt(0.2mol·L-1NaCl).Theex
pressionlevelwassignificantlyincreasedafterhightemperatureorlowtemperaturetreatments,respective
ly.Theexpressionlevelspeakedat1hheattreatmentand2hcoldtreatment,respectively.Theseresults
suggestedthat犇犮犆犃犇geneparticipateintheresponseprocessofcarrotundertheabioticstress.
犓犲狔狑狅狉犱狊:cinnamylalcoholdehydrogenase;homologousanalysis;abioticstress;expressionanalysis;
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AFP43763.1)、4 5 6 (犛狅犾犪狀狌犿狋狌犫犲狉狅狊狌犿,XP_
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õ1 yz{犇犮犆犃犇-õ;
Fig.1 PCRamplificationof犇犮犆犃犇genefromcarrot
õ2 yz{犇犮犆犃犇-é½-
Fig.2 Thenucleotideacidanddeducedaminoacidsequencesof犇犮犆犃犇genefromcarrot
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Theasteriskmarksthe3catalyticZnbindingsites;Thearrowmarksthe3structuralZnbindingsites;TheaccessionnumbersofCAD
fromdifferentplantswere:犚犻犮犻狀狌狊犮狅犿犿狌狀犻狊(XP_011083448.1),犛狆犻狀犪犮犻犪狅犾犲狉犪犮犲犪(KNA09004.1),犆犪犿犲犾犾犻犪狊犻狀犲狀狊犻狊(ACV74414.1),
犛狅狉犵犺狌犿犫犻犮狅犾狅狉(XP_002446076.1),犔狅犾犻狌犿狆犲狉犲狀狀犲(AAL99536.1),犇犪狌犮狌狊犮犪狉狅狋犪(ALN38479.1),犆狌犮狌犿犻狊狊犪狋犻狏狌狊
(XP_004136373.1),犃狉狋犲犿犻狊犻犪犪狀狀狌犪(ACB54931.1),犆犪狆狊犻犮狌犿犪狀狀狌狌犿 (ACF17645.1),犛狅犾犪狀狌犿狋狌犫犲狉狅狊狌犿 (XP_006356896.1),
犃狉犪犫犻犱狅狆狊犻狊狋犺犪犾犻犪狀犪(NP_195643.1),犕犪犾狌狊犱狅犿犲狊狋犻犮犪(XP_008359757.1),犗狉狔狕犪狊犪狋犻狏犪(NP_001052290.1),犜狉犻狋犻犮狌犿犪犲狊狋犻狏狌犿
(CDM85988.1),犖犻犮狅狋犻犪狀犪犪狋狋犲狀狌犪狋犪(AFP43763.1),and犣犲犪犿犪狔狊(NP_001136687.1)
Fig.3 AlignmentofaminoacidsequencesofcarrotDcCADandotherdifferentplants
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Table1 Thecomparisonofcompositionandphysicalandchemicalcharacterizationofaminoacidsequence
ofpartofcarrotDcCAD
#$
Plant
C}>
Accession
number
-J-
Numberof
aminoacids
ÐK¾¿JKa°
Theoretical
relativemolecular
mass/Da
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Ratioofpositive
aminoacids/%
M-òL
Ratioofnegative
aminoacids/%
×NW
-O
Aliphatic
index/%
#È
Averageof
hydrophobicity
yz{犇.犮犪狉狅狋犪 ALN38479.1 357 39088.0 6.730 11 12 87.09 -0.133
OC犜.犪犲狊狋犻狏狌犿 CDM85988.1 354 38503.6 6.384 12 15 86.98 -0.093
*\+犃.狋犺犪犾犻犪狀犪 NP_195643.1 360 43058.5 6.668 12 15 90.51 -0.077
,-犃.犪狀狀狌犪 ACB54931.1 361 47931.5 5.629 12 16 96.23 -0.003
.N犆.狊犻狀犲狀狊犻狊 ACV74414.1 360 52691.5 7.095 13 15 92.29 -0.144
/0犆.犪狀狀狌狌犿 ACF17645.1 357 53961.2 6.179 13 16 94.14 -0.143
,1犆.狊犪狋犻狏狌狊 XP_004136373.1 362 59078.9 7.497 13 15 90.59 -0.210
|CD犔.狆犲狉犲狀狀犲 AAL99536.1 370 72474.2 6.696 13 16 97.15 -0.122
2²犕.犱狅犿犲狊狋犻犮犪 XP_008359757.1 366 78411.9 8.122 13 15 94.79 -0.193
3D犖.犪狋狋犲狀狌犪狋犪 AFP43763.1 357 82483.4 5.413 13 16 97.14 -0.189
456犛.狋狌犫犲狉狅狊狌犿 XP_006356896.1 360 87503.2 6.567 13 16 97.33 -0.213
78犣.犿犪狔狊 NP_001136687.1 361 38711.3 7.269 13 16 92.33 -0.143
9犗.狊犪狋犻狏犪 NP_001052290.1 360 43535.1 7.230 13 16 92.57 -0.145
3E犛.犫犻犮狅犾狅狉 XP_002446076.1 362 47805.7 6.575 13 16 93.91 -0.143
:I犛.狅犾犲狉犪犮犲犪 KNA09004.1 359 57354.5 7.286 13 16 89.81 -0.195
EF犚.犮狅犿犿狌狀犻狊 XP_011083448.1 362 52929.3 6.868 13 16 94.25 -0.199
EF
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Fig.8 Expressionprofilesofthe犇犮犆犃犇geneunder
differentabioticstresstreatmentsincarrot
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