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Molecular Cloning and Expression Analysis of TaSF3B2 from Wheat

小麦胁迫相关基因TaSF3B2的克隆及表达特性分析



全 文 :书!"#$%&
,2016,36(8):1528-1533
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狅犳犜犪犛犉3犅2犳狉狅犿犠犺犲犪狋
HUANGXin1,XIABaicheng1,LONGXiangyu2
(1ColegesofAgronomy,HainanUniversity,Haikou570228,China;2RubberResearchInstitute,ChineseAcademyofTropical
AgriculturalSciences,Danzhou,Hainan571737,China)
犃犫狊狋狉犪犮狋:Tostudythefunctionofsplicingfactorresponsestoabioticstress,acDNAsequenceof犜犪犛犉3犅2
wasisolatedandanalyzedfromwheatESTdatabase.Theresultsshowedthat犜犪犛犉3犅2containeda1854
bpORFencoding617aminoacids.UsingthemethodsofbioinformaticstopredictandanalyzeTaSF3B2,
theproteinhasclassicdomainofsplicingfactor3Bsubunit2,highhydrophilia(GRAVY,-0.895)and
heatstability(Instabilityindex,43.92).TheresultsofrealtimePCRrevealedthattheexpressionof
犜犪犛犉3犅2haddifferentlevelsindifferentdevelopmentsandtissues.Inaddition,theexpressionwasin
ducedmarkedlybydrought,salt,lowtemperature,ABAandyelowrust(CY32),withdownregulation
inleavesofseedling,butnochangeinroot.Insummary,itisspeculatedthatTaSF3B2couldplayarole
notonlyingrowthanddevelopmentconditionsbutalsoinbioticandabioticstressesofwheat.
犓犲狔狑狅狉犱狊:wheat;犜犪犛犉3犅2;geneclone;bioinformaticanalysis;geneexpression
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net.org/software/TMPRED_form.html;¿è$/
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CG3′)ñ 犜犪犈犉1αR(5′CGGACAGCAAAACGAC
CAAG3′)。‘e¹Ô¼½²³´µª¶PCRŒµ
¶RealMasterMix(SYBRGreen,¸¹Ô,Ö:
º–»¼½
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”•|Ž~–¨úd GUS1—˜™(Splicing
Factor3B,Subunit2),㠛 û 181~429 ã
(COG5182,Evalue:1.64e67),³|Ž_Nü
~– RT_like—˜™(reversetranscriptase_like
family,cl02808)。÷€%Blast—5·¸,|ŽŠ
*y z { Ú ý þ ä [ (犜狉犻狋犻犮狌犿 狌狉犪狉狋狌,
EMS56988.1)、ÿ!"#$(犅狉犪犮犺狔狆狅犱犻狌犿犱犻狊
狋犪犮犺狔狅狀,XP_003573003.1)、¦%(犗狉狔狕犪狊犪狋犻狏犪
犑犪狆狅狀犻犮犪Group,NP_001048592.1)、3&(犌犾狔犮犻狀犲
犿犪狓,XP_003541544.1)、((犛狅犾犪狀狌犿犾狔犮狅狆犲狉狊犻
犮狌犿,XP_004234125.1)、)*(犚犻犮犻狀狌狊犮狅犿犿狌狀犻狊,
XP_002519025.1)、+M, (犃狉犪犫犻犱狅狆狊犻狊犾狔狉犪狋犪
subsp.犾狔狉犪狋犪,XP_002867835.1)ñSF3B2(Spli
cingfactor3b,subunit2)Š*yz{d€…iJ*
½ÿ 99%、89%、87%、74%、72%、75%、71% ñ
69%(ä2)。m-·¸|ŽZ[\]^+K3B
œ*2(.d€E(SF3B2),žŸZTaSF3B2。
Š*yŒJg—5¡¢
(http://web.ex
pasy.org/protparam/),|Ž/~0Šy Glu
(77,12.5%),1ŠyLys(69,11.2%),¹2Šy
Asp(49,7.9%),3ŠyLeu(47,7.6%),ӌŠy
His(8,1.3%),4Šy Trp(6,1.0%)ñ5µŠy
Cys(3,0.5%)~¶6È。|ŽMZ?×"(PI)
Z4.94,¨ ©ª§lZ(instabilityindex)43.92,Ä
¸|Žö€¨©ªdyiŽ

Žÿ7—˜
Jg—5¡¢
(SOPMA àÝ),TaSF3B2ŽQ
40.84%Š*yÙÚ8H9ò(randomcoil),
37.93%dŠ*y‹*ÙÚα:;(alphahelix),
14.26%dŠ*yÙÚÒÓ<(extendedstrand),
=–6.97%dŠ*yÙÚβ)>(betaturn)(ä
3),‰-¯?,|Žÿ7—˜±3@Ýö8H9
ò
,α:;、ÒÓ<Îβ)>¤AþBC›DŽ
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ãŠ*y
),
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(GRAVY)Z-0.895,·
䷕Z¥¦i

³”•|ŽÀ¨º_¸¡d
硗˜™
。TaSF3B2œ¬­ªãJg—5¡¢
(http://psort.hgc.jp/form.html),|Žªã›
¬­wd¯°i±3

uJZ0.980。
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Ôm犜犪犛犉3犅2*+‡ˆdŠ*yz{,_3

KL$

"#$

MN

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ÆO

6P



)
M.Marker;1.PCRÍÎ-$
ä1 犜犪犛犉3犅2*+cDNAdPCRÍÎÄÛ
M.Marker;1.PCRproduct
Fig.1 Electrophoresisof犜犪犛犉3犅2cDNAfragment
0351 ! " # $ % &                   369
ä2 #$SF3B2Š*yz{’“
Fig.2 AlignmentofaminoacidsequencesofSF3B2inplants




TáñUáVW·α:;,ÒÓ<,β)>ñ8H9ò
ä3 [\TaSF3B2Ž3dÿ7—˜Jg
Theblue,red,greenandpurplelinesrepresentthealphahelix,extendedstrand,betaturnandrandomcoil,respectively
Fig.3 SecondarystructureofwheatTaSF3B2protein
*

(
、¯
¯ê

XY

3&

+M,

$ZÎ[Q

õöuÿ16vÚTaSF3B2j÷dSF3B2Š*
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。Clustalxùz{’“,JTTW]^_§A
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)*Î
+M,_ëdj10vhKÃSF3B2Š*yz{,
ûÿg}i[、
3、
Φ%_ëdj7vFK
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TaSF3B2Ú¥kk§6CdKL$SF3B2dŽ
z{€…iƽ83%,Ú¿¥kk§6ld+M,
SF3B2dŽz{À–6Ædj÷i(69%)。ù
z{’“Jg¡¢móg#$SF3B2_Cüº_
Æød¨úi

n¿_ GUS1—˜™,Ó¨$/
SF3B2dNüŠ*yz{Jªº_¸¡»¼,Š*
yz{dùGiÀFGº_› NüVªdo™。
fg

Š*y‘iÎz{’“—5·¸
,SF3B2
ŽJK÷Öj“¨ú

«¿JK÷ÖÚ$/ªd
,$÷Ök§p›€…

13518¾           6 7,?:[\bcjk*+犜犪犛犉3犅2drsη½ViJg
ä4 ÚTaSF3B2j÷dSF3B2Ž÷ÖJg
Fig.4 PhylogeneticanalysisofSF3B2fromplants
ä5 犜犪犛犉3犅2*+_¨³¾ÎŒ¹Qd·½Wõ
Fig.5 Expressionpatternanalysisof犜犪犛犉3犅2in
differentperiodsandtissues
ä6 ¨bcÑ犜犪犛犉3犅2*+_¾ÔQd·½Wõ
Fig.6 Expressionpatternanalysisof犜犪犛犉3犅2in
rootunderstress
2.3 犜犪犛犉3犅2,:;rsAtB?@CD
‘e²³´µª¶PCRºùJg犜犪犛犉3犅2
*+_[\¨”1³¾
、¨
Œ¹Qd·½Vi

_¾dÔ

¬ÎÃK

ï¾dÔ

¬

ÃKÎ/K
Q

¤°ëØÿ犜犪犛犉3犅2*+d·½,·¸|*+
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ä
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Æ

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KάQ·½¶±È

qýŒ¹V¼·½—5

r
ä7 ¨bcÑ犜犪犛犉3犅2*+_¾ÃÄQd·½Wõ
Fig.7 Expressionpatternanalysisof犜犪犛犉3犅2in
leafunderstress
s犜犪犛犉3犅2*+_WëØdŒ¹Q¤·½,tö
|*+uº_Œ¹V¼i·½

³|*+d·½
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、ABA、ÌÍÎÇbc

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*+Z‚8$SF3B2ƒSAP145d‘*+。
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,SAP145ÚSAP49#ü
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