CN112195162A - 水稻叶片衰老控制基因es2及其应用 - Google Patents

水稻叶片衰老控制基因es2及其应用 Download PDF

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CN112195162A
CN112195162A CN202011064090.2A CN202011064090A CN112195162A CN 112195162 A CN112195162 A CN 112195162A CN 202011064090 A CN202011064090 A CN 202011064090A CN 112195162 A CN112195162 A CN 112195162A
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饶玉春
林晗
王盛
徐江民
焦然
胡娟
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Sun Peilian
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Abstract

本发明属于农业生物技术工程,具体涉及一种水稻叶片衰老控制基因ES2及其在水稻育种中的应用。本发明公开了水稻叶片衰老控制基因ES2,该水稻叶片衰老控制基因ES2的核苷酸序列如SEQ ID NO:1所示。该水稻叶片早衰性状基因ES2的用途为调控水稻叶片的衰老。

Description

水稻叶片衰老控制基因ES2及其应用
技术领域
本发明属于农业生物技术工程,具体涉及一种水稻叶片衰老控制基因ES2及其在水稻育种中的应用。
背景技术
植物叶片衰老是叶片发育的最终阶段,也是植物在长期进化过程中形成的适应性机制。作为叶片生长发育的最后阶段,叶片衰老由外部和内部信号引起,该过程包括细胞结构和生理变化,导致大分子(如叶绿素、蛋白质、核酸和脂质)的降解、营养物质的再分布和细胞结构的破坏,并受植物激素、一些代谢物的内源性因素以及光合作用的状态等调控[1,2]。已有研究表明,植物衰老过程可划分为2个阶段:(1)可逆衰老阶段,该阶段细胞以活体状态存在,依然具备相关功能。当外界胁迫或内部信号消失后细胞便能很快恢复正常状态。(2)不可逆衰老阶段,此时细胞内的细胞器发生裂解,细胞膜通透性降低,细胞增殖与分化能力和生理功能逐渐衰退,同时染色质开始降解,PCD发生,即产生的影响无法恢复[3]。叶片作为水稻 (Oryza sativa)重要的源器官,为植株提供各种营养组分,包括大量的能量和有机物,以保证水稻正常的生长发育。而水稻的衰老亦最早体现在叶片上。经过大量的育种实践,发现叶片的早衰造成水稻叶片功能期的缩短,可利用营养物质的缺乏并严重影响籽粒的发育[4],从而导致水稻产量与品质的下降。因此,衰老进程在很大程度上决定了作物的产量及品质。
叶片衰老最显著的形态变化是叶色改变,其原理在于叶绿体的解体导致叶绿素含量迅速降低,最终引发叶片的死亡脱落。水稻叶片衰老的形态学变化主要有3种:(1)由于叶绿素缺失导致大部分水稻叶片过早失绿而黄化,已精细定位的相关基因有etl1、etl2及pse1等[5,6];(2) 叶片卷缩,从叶缘延伸至叶尖,进而扩展至整片叶,相关基因有rel2、es-t及wlt1[7-9];(3)病程相关蛋白(PRS)等导致叶片中部逐渐产生斑点,甚至局部坏死,相关基因有psl3和spl7等[10,11]。水稻的衰老过程伴随着许多复杂的生理生化反应。其中,叶细胞显示出一些独特的结构和生理生化变化。最早的结构变化主要从叶绿体开始,首先是细胞质收缩和质膜破裂降解,接下来基粒片层和基质片层结构紊乱,以及形成一种被称为“质体小球”的脂滴,嗜锇颗粒的数量和体积也逐渐增加;同时,相关运输蛋白被激活,可利用的营养物质活化后被运输至库器官贮存;而RuBP羧化酶迅速降解导致光合能力急剧下降,叶片内蛋白质含量降低到正常水平以下;随之液泡崩裂,细胞器数量减少;然后在各种溶解酶的作用下,胞内不正常的酶活反应造成细胞液电解质紊乱,导致叶片气孔缩小、光合及蒸腾速率降低及运输能力下降等,最终导致细胞死亡[12]
科学家利用物理辐射、化学诱变以及T-DNA插入等技术创造了大量的水稻叶片早衰相关突变体,且随着图位克隆技术的发展,水稻叶片早衰的相关研究快速发展。叶片衰老过程中,一些基因的表达会被抑制,也有的基因会促使其表达,这些在RNA或者蛋白的表达水平上发生明显变化的基因称为衰老相关基因(senescence-associated genes,SAGs)。主要包括激素途径相关基因、叶绿体发育及叶绿素降解相关基因、蛋白酶或物质转运代谢相关基因、转录因子家族相关基因以及光敏色素等其他途径相关基因[13]
上文中涉及的参考文献如下:
1.Sakuraba Y,Balazadeh S,Tanaka R,et al.Overproduction of chlBretards senescence through transcriptional reprogramming in Arabidopsis.PlantCell Physiol,2012,53:505–517 (Sakuraba Y,Balazadeh S,Tanaka R,等.在拟南芥中chlB的过表达通过转录的重编程来延缓衰老.植物细胞生理学.2012,53:505–517);
2.Kusaba M,Tanaka A,Tanaka R.Stay-green plants:what do they tell usabout the molecular mrchanism of leaf senescence.Photosynth Res,2013,117:221–234(Kusaba M,Tanaka A,Tanaka R.持绿植物:它们告诉我们关于叶片衰老的机制.光合作用研究.2013,117:221–234);
3.Buchanan-Wollaston V,Earl S,Harrison E,et al.The molecular analysisof leaf senescence genomics approach.Plant Biotechnol J,2003,1:3–22(Buchanan-Wollaston V,Earl S,Harrison E, 等.叶片衰老基因组学方法的分子分析.植物生物技术期刊.2003,1:3–22);
4.翟荣荣,冯跃,曹立勇,等.水稻叶片衰老研究进展.中国稻米,2011,17:7–12;
5.Mao D,Yu H,Liu T,et al.Two complementary recessive genes induplicated segments control etiolation in rice.Theor Appl Genet,2011,122:373–383(Mao D,Yu H,Liu T,等.重复片段中的两个互补隐性基因控制水稻的黄化.理论和遗传应用学.2011,122:373–383);
6.Wu HB,Wang B,Chen Y,et al.Characterization and fine mapping of therice premature senescence mutant ospse1.Theor Appl Genet,2013,126:1897–1907(Wu HB,Wang B,Chen Y,等. 水稻早衰突变体ospse1的鉴定和精细定位.理论和遗传应用学.126:1897–1907);
7.杨窑龙,饶玉春,刘慧娟,等.水稻早衰叶突变体es-t的遗传分析与精细定位.科学通报,2011,56:1539–1545;
8.徐芳芳,桑贤春,任德勇,等.水稻早衰突变体esl2的遗传分析及基因定位.作物学报, 2012,38:1347–1353;
9.Yang SQ,Li WQ,Miao H,et al.REL2,a gene encoding an unknown functionprotein which contains DUF630 and DUF632 domains controls leaf rolling inrice.Rice,2016,9:37(Yang SQ,Li WQ,Miao H,等.编码含有DUF630和DUF632结构域的未知功能蛋白的基因REL2控制水稻中叶片的卷曲.水稻.2016,9:37);
10.Yamanouchi U,Yano M,Lin H,et al.A rice spotted leaf gene,Spl7,encodes a heat stress transcription factor protein.Proc Natl Acad Sci USA,2002,99:7530–7535(Yamanouchi U,Yano M,Lin H,等.水稻斑点叶基因Spl7编码一个热应激转录因子蛋白.美国国家科学院院刊. 2002,99:7530–7535);
11.方立魁,李云峰,龚小平,等.水稻叶片显性早衰突变体psl3的遗传分析与基因精细定位.科学通报,2010,55:1676–1681;
12.Zhou Y,Huang W,Liu L,et al.Identification and functionalcharacterization of a rice NAC gene involved in the regulation of leafsenescence.BMC Plant Biol,2013,13:132(Zhou Y,Huang W,Liu L,等.参与调控水稻叶片衰老的NAC基因的鉴定和功能鉴定.BMC植物生理学.2013, 13:132);
13.徐娜,徐江民,蒋玲欢,等.水稻叶片早衰成因及分子机理研究进展.植物学报,2017, 52:102–112。
发明内容
本发明要解决的技术问题是提供一种水稻叶片衰老控制基因ES2及其在水稻育种中的应用。
为了解决上述技术问题,本发明提供一种水稻叶片衰老控制基因ES2(即,水稻叶片早衰性状基因ES2,为水稻叶片早衰突变体ES2基因):该水稻叶片衰老控制基因ES2的核苷酸序列如SEQ ID NO:1所示。其编码的氨基酸序列为SEQ ID NO:3。
说明:其对应的野生型基因ES2的核苷酸序列如SEQID NO:2所示;编码的氨基酸序列为SEQ ID NO:4。
本发明还同时提供了上述水稻叶片早衰性状基因ES2的用途:调控水稻叶片的衰老。
作为本发明的水稻叶片早衰性状基因ES2的用途的改进:改变水稻植株的产量和品质。
本发明,基因突变后,造成衰老表型;正常表达时,不会出现衰老;为负向调控。
本发明还提供了含有上述基因的质粒,以及含有所述基因或所述载体的工程菌或宿主细胞。
所述植物表达载体为pCAMBIA1300s-ES2。
所述工程菌和宿主细胞可理解为本领域技术人员在转基因过程中所使用的工程菌或宿主细胞。但随着科技发展,所述工程菌和宿主细胞的选择也许会发生变化,或在非转基因目的的应用领域,也同样涉及载体和工程菌的利用,但只要含有本发明所述基因或本发明所述的载体,均在本发明的保护范围之内。
进一步地,本发明还提供了一种宿主细胞,该宿主细胞含有基因序列,该细胞为大肠杆菌细胞、农杆菌细胞或植物细胞。
本发明中,水稻叶片早衰突变体的氨基酸序列为SEQ ID NO:1,其编码的氨基酸序列为 SEQ ID NO:3。
本发明的水稻叶片早衰突变体es2是从粳稻品种台北309的EMS诱变体库中筛选得到的。与野生型相比,es2在苗期无明显差异表型,分蘖始期开始(4-5叶期),es2的生长发育明显较野生型的慢,分蘖明显比野生型少,新抽叶的叶缘出现微黄,倒二叶和倒三叶的叶尖部表现出明显的黄化早衰,基部则保持正常的绿色,该早衰表型直到抽穗期,之后,es2的整个植株的叶片均出现黄化早衰,且每一片叶片的尖部早衰最为明显,甚至出现死亡萎嫣状态,野生型植株的叶片在相同时期内则一直保持绿色表型。本发明采用图位克隆的方法克隆了叶片早衰突变体es2的性状控制基因ES2。es2基因是由LOC_Os03g31550基因发生了单碱基缺失突变而来的,即SEQ ID NO:2的第1669位核苷酸T的缺失。该位点的缺失造成了ES2基因编码框的移码突变,从而在第四个外显子中产生了终止密码子TGA,提前终止了氨基酸编码。生物信息学分析显示基因ES2编码了一个水稻黄嘌呤脱氢酶。功能互补实验证明ES2是控制水稻叶片衰老相关基因。
本发明还同时提供了上述基因的用途:利用基因工程技术可以把叶片衰老基因的一些特异标记性状应用于水稻品种改良、产量增加和培育超级稻。
附图说明
下面结合附图对本发明的具体实施方式作进一步详细说明。
图1是野生型台北309和突变体es2的表型分析;
A:分蘖始期野生型(左)和es2(右)的表型;
B:分蘖始期野生型(左)和es2(右)不同部位叶片的表型;
C:成熟期野生型(左)和es2(右)表型;
D:野生型(上)和es2(下)的粒型比较。
图2是ES2基因的定位图;
A:初步定位,利用es2/TN1的F2群体的80株突变单株,将ES2基因定位在第3号染色体的SSR标记B3-11和B3-16之间;
B:精细定位,利用es2/TN1的F2群体的1350株突变株,将ES2定位在分子标记M4 和M6之间180.65kb的区域;
C:ES2基因的结构示意图,通过对该区域的es2和台北309亲本基因组DNA序列测序比对分析,结果发现在基因ES2(LOC_Os03g31550)的CDS序列的1669位碱基T缺失而导致移码突变,出现提前终止。
图3是功能互补载体pCAMBIA1300-ES2的图谱。
图4是功能互补实验T0代转基因水稻的表型示意图。
具体实施方式
下面结合具体实施例对本发明进行进一步描述,但本发明的保护范围并不仅限于此:
为了更充分的解释本发明的实施,下面提供了水稻叶片早衰突变体es2基因的实施例。这些实施例仅仅是解释、而不是限制本发明的范围。所用的原料均有市售。
实施例1、突变体材料的获得
通过EMS化学诱变粳稻品种台北309,筛选到一份叶片早衰突变体es2。该突变体的性状经过多代自交已稳定遗传,在分蘖始期开始出现早衰表型,并其生长发育明显较野生型的慢,分蘖明显比野生型少,到抽穗期叶片早衰表型十分明显。所有水稻材料种植于浙江省金华市浙江师范大学生化学院试验田,常规管理。
野生型台北309和突变体es2的表型分析如图1所示。
上述EMS化学诱变方法具体为:将台北309种子浸没于浓度在0.05-0.5mol/L的甲基磺酸乙酯30min,之后将种子发芽种植到大田,经过多代自交,满足植株叶片早衰生长发育迟钝筛选条件的作为叶片早衰突变体es2。
实施例2、群体构建和遗传分析
将突变体es2和常规籼稻TN1、ZF802进行杂交配组,F1植株均表现出正常野生型表型,说明es2受隐性核基因控制。统计F2分离群体分离比(表1),结果表明,正常表型的植株和突变体表型的植株的分离比经过卡方检验接近3:1分离,这表明es2的叶片早衰表型是由单隐性核基因控制。
表1叶片早衰突变体es2的遗传分析
Figure BDA0002713233560000051
Figure BDA0002713233560000061
实施例3、ES2基因的精细定位
利用本实验室保存的均匀分布于水稻12条染色体的SSR引物对突变体与TN1进行多态性筛选,筛选到116对SSR引物具有多态性。然后用21个es2/TN1中F2叶片早衰单株进行连锁分析,初步确认目标基因所在的染色体位置。基因组DNA采用CTAB法提取。具体步骤如下:
①、称取0.1g的水稻叶片用液氮研磨成粉状,然后加入600μl的CTAB溶液(2%(m/V) CTAB,100mmol/L Tris-Cl,20mmol/L EDTA,1.4mol/L NaCl;pH8.0)配制的DNA提取缓冲液,65℃水浴40分钟。再加600μl的氯仿:异戊醇(24:1的体积比),并混匀。10,000rpm 离心5分钟,将上清液转移到新的离心管中。
②、在上述步骤①离心后所得的上清液中加2/3~1倍体积预冷(至4℃)的异丙醇,轻轻混匀至DNA沉淀。13,000rpm离心8分钟,倒出上清液。
③、再用70%(体积浓度)的已醇200μl洗涤上述步骤②所得的DNA沉淀物。
④、将上述洗涤后的DNA晾干并溶于100μl TE缓冲液或纯水中。
⑤、紫外分光光度法检测上述步骤④所得的DNA样品的浓度,0.7%的琼脂糖凝胶电泳检测DNA的完整性。完整合适的DNA用于PCR扩增,不完整的DNA则重新提取,直至获得完整的DNA。
PCR反应体系采用10μL体系:DNA模板1μL,10×PCR缓冲液1μL,正反向引物(10μmol/L) 各0.5μL,dNTPs 1μL,rTaq酶0.2μL,加ddH2O补足10μL。PCR扩增程序如下:94℃下预变性4min;94℃下变性30s,55℃~60℃下退火30s(温度因引物不同而异),72℃下延伸30s,40个循环;最后72℃下延伸10min。PCR产物用4%琼脂糖凝胶电泳,电泳结束后在凝胶成像仪拍照并读胶。利用上述筛选的116对SSR引物进行ES2基因连锁分析发现在第3号染色体的SSR标记B3-11处表现出连锁现象,随后在该标记的上下游附件选择标记进行区间确定,结果将目的基因锁定在SSR标记B3-11和B3-16之间(如图2的A所示)。在此区间再次设计新的多态性分子标记,用1150个F2单株最终将该基因定位在M4和M6这两个分子标记之间(如图2的B所示)。引物序列见表2。
表2精细定位所用分子标记
Figure BDA0002713233560000071
实施例4、候选基因的确定
根据精细定位的180.65kb的区间内,在水稻基因组数据库(http://rice.plantbiology.msu.edu/) 进行候选基因预测,发现共有24个开放阅读框(ORF)。其中包括了9个表达蛋白,4个反转座子蛋白,11个功能蛋白。利用PCR的方法,将突变体es2和野生型台北309中这24个基因所在的基因组序列扩增出来,测序分析,发现只有一个基因(LOC_Os03g31550)出现突变,该基因的CDS序列的1669位碱基T缺失,编码序列在1693bp处出现终止子TGA,导致该核苷酸编码的蛋白质提前终止,使得该蛋白的功能受到影响。
水稻叶片早衰突变体基因es2的核苷酸序列为SEQ ID NO:1,水稻叶片早衰突变体对应的野生型台北309的核苷酸序列为SEQ ID NO:2。
水稻叶片早衰突变体基因es2所编码蛋白质的氨基酸序列如SEQ ID NO:3所述。野生型台北309所编码蛋白质的氨基酸序列如SEQ ID NO:4所述。
实施例5、功能互补载体的构建与转基因功能互补
扩增台北309中ES2基因的包含起始密码子ATG除去终止密码子TAG共4107bp的cDNA 片段,然后连入pEASY-Blunt Cloning Vector(TransGen Biotech公司)中,之后在连入到 pCAMBIA1300载体中(图3)。
这个质粒通过电击的方法转入农杆菌(Agrobacterium tumefaciens)株系EHA105中转化水稻。利用突变体es2成熟胚诱导的愈伤组织,经过诱导培养基培养2周后,挑选生长旺盛的愈伤用作转化的受体。用含有双元质粒载体(pCAMBIA1300-ES2)的EHA105菌株侵染水稻愈伤,在黑暗、25℃条件下共培养3天后,在含有50mg/L Hygromycin的筛选培养基上光照培养14天左右(光照强度为13200LX,温度为32℃)。将预分化的愈伤转至分化培养基上在光照条件下(光照强度为13200LX,温度为32℃)培养一个月左右得到抗性转基因植株。转基因植株表现为正常叶片表型和生育期,实验结果表明互补载体能够完全恢复es2的早衰突变表型(图4)。
说明:上文中提及的各项培养基(诱导培养基、筛选培养基、分化培养基)均为常规培养基。
实施例6、水稻叶片早衰基因ES2在水稻育种中的应用
首先,在生产实践中,可将上述基因(SEQ ID NO:2)转化植物细胞,再将转化后的植物细胞培育成植株。通过该转基因方法,利用植物表达载体转化植物细胞以影响水稻叶片的早衰,进而可以改良水稻或其他禾本科植物的产量、品质。其次,在生产实践中,还可将上述基因通过分子标记辅助选择育种方法来改良水稻或其他禾本科植物的产量、品质。如图1,可以通过水稻籽粒的形态初步判断水稻的种子的品质。
最后,还需要注意的是,以上列举的仅是本发明的若干个具体实施例。显然,本发明不限于以上实施例,还可以有许多变形。本领域的普通技术人员能从本发明公开的内容直接导出或联想到的所有变形,均应认为是本发明的保护范围。
序列表
<110> 浙江师范大学
<120> 水稻叶片衰老控制基因ES2及其应用
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gaggcggtcg tctacgtcaa cggcgtccgc cgcgtgctcc ccgacggcct cgctcacctc 120
accctgctcc aatacctcag agacattggt cttcctggaa caaagcttgg atgtggtgaa 180
ggtggctgtg gagcctgcac tgtgatggtc tcatgctatg atcaaactac aaagaagaca 240
cagcattttg caatcaacgc atgcttggct ccgctttatt ctgtggaagg aatgcacata 300
atcacagtag agggaattgg gaatcgtcag cgaggtttgc acccaatcca ggaacgttta 360
gccatggccc acggttcaca atgtggattt tgcacccctg gttttgtgat gtcgatgtat 420
gcattgctga gatcaagtga acagcctcct actgaagagc agattgaaga tagccttgca 480
ggaaatttat gtcgctgtac tggctacaga ccaataatag acgccttccg tgttttctcg 540
aaaagagatg atcttttgta caacaattca tctctgaaaa atgcagatgg ccgacctatc 600
tgcccttcaa caggaaaacc atgttcctgc ggagatcaga aagacatcaa tggtagtgaa 660
tcttcattat tgacacctac gaaaagctac tcaccttgtt catacaatga gattgatgga 720
aatgcgtaca gtgagaaaga actcattttc cccccagaac ttcagttgag aaaagttacg 780
tcacttaaat tgaatgggtt taatgggatt cggtggtata gacctcttaa actaaagcaa 840
gtattgcatt tgaaagcatg ctacccaaat gcaaaactaa tcattggtaa ctctgaagta 900
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gttactcatg aaatgaatat aaaaggattt tggaaggatg gattacatgc aaccaatctt 1740
tcagccatac agtctttcac tagacctgtc ggtgttggaa ctcaatgtta tgaattggtt 1800
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ggtgaagcgg aatatactga tgacacaccg acacccccca ataccttgca tgctgctctg 1920
gtgctgagta cgaaagctca cgcacgcata ttatctattg atgcttcact tgccaaatct 1980
tcccctgggt ttgcgggtct cttcctttca aaagacgtgc ctggcgctaa ccatactggg 2040
cctgttatcc atgacgagga ggtttttgca tctgatgttg ttacatgtgt tggccagatt 2100
gttggacttg ttgtggcaga tacccgtgat aatgcaaaag ctgctgcaaa taaagtcaat 2160
attgagtatt ctgaacttcc agcaatttta tccatagagg aagctgtgaa agctggtagc 2220
tttcatccaa atagcaagag atgcctagta aaaggtaatg ttgaacaatg ttttctgtcg 2280
ggtgcatgcg atagaattat agaaggaaaa gtacaagttg gaggtcaaga gcacttctac 2340
atggagcctc agagcactct tgtatggcca gttgattctg gaaatgaaat tcatatgatt 2400
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caatcaagag ttgtttgcaa gactaagcgt attggtggtg gatttggtgg aaaagaaacc 2520
agatcagcaa tatttgctgc agcagcatct gtagctgctt attgtttaag gcagcctgta 2580
aagcttgttt tggacaggga tattgacatg atgacaactg gacagaggca cagtttccta 2640
gggaagtaca aggtgggatt taccgatgat gggaagatat tggccttaga ccttgatgtt 2700
tataacaatg gtggtcattc acatgatttg tcccttccag tcctggagcg tgctatgttt 2760
cattcagaca atgtctatga tataccaaat gtcagagtca atgggcaagt atgtttcaca 2820
aatttcccaa gcaatactgc tttcagaggt tttggtggtc cacaagctat gctgattgca 2880
gagaattgga ttcagcacat ggctacagaa ctcaagcgaa gtcctgagga gataaaagaa 2940
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atacattcag tatgggatga actaaaggtt tcttgtaatt ttatggaagc tcgcaaagct 3060
gtaattgatt ttaacaataa taaccgttgg agaaagcgtg gcattgctat ggttcccacc 3120
aagtttggga tatccttcac tacaaaattc atgaatcagg ctggtgcttt agtgcaagtt 3180
tacactgatg gaactgtcct tgtaacgcat ggtggggttg aaatggggca gggtttacac 3240
acaaaggtag cccaagttgc ggcttcatca ttcaatatcc ctcttagctc tatatttatc 3300
tcagaaacaa gcactgataa ggtaccaaat gcaacaccaa cagcagcctc tgctagttca 3360
gatttatatg gtgctgcagt tttggatgct tgtcagcaaa ttatggctcg gatggaacct 3420
gttgcttcaa gaggaaacca caagtccttt gctgagttgg ttctagcatg ctacctggaa 3480
aggatagatc tctctgctca tggattttat atcactcctg atgttgggtt tgactgggtg 3540
tctggcaagg gaactccatt ctactatttc acatacggag cagcatttgc agaagttgaa 3600
attgataccc taactgggga tttccacaca aggacagtag atattgttat ggatcttggc 3660
tgttcaatta atccggctat tgatattggc cagattgaag gaggttttat ccaaggatta 3720
ggttgggcgg ccctggaaga actaaaatgg ggggatgata accacaagtg gattcgacct 3780
ggacatcttt tcacttgtgg gcctggctct tacaaaatac cctctgtaaa tgatatacct 3840
ctaaacttca aggtctcact tttgaagggc gttttgaatc caaaggtcat tcactcatcc 3900
aaggctgtag gagagccacc gtttttcctc ggttcagccg tcttgtttgc cataaaggat 3960
gcgatatctg ccgcaagagc tgaggagggt cacttcgact ggttcccact cgacagccca 4020
gcaacaccgg aaagaataag aatggcatgc gtggattcca tcacaaagaa atttgctagc 4080
gtatattacc gtcccaagct tagtgtatag 4110
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Gly Lys Lys Trp Asp Tyr Gly Leu Leu Asp Lys Thr Phe Asp Leu Leu
515 520 525
Lys Glu Asp Val Val Leu Ala Glu Asn Ala Pro Gly Gly Met Val Glu
530 535 540
Phe Arg Ser Ser Leu Thr Leu Ser Phe Phe Phe Lys Phe Phe Leu His
545 550 555 560
Val Thr His Glu Met Asn Ile Lys Gly Phe Trp Lys Asp Gly Leu His
565 570 575
Ala Thr Asn Leu Ser Ala Ile Gln Ser Phe Thr Arg Pro Val Gly Val
580 585 590
Gly Thr Gln Cys Tyr Glu Leu Val Arg Gln Gly Thr Ala Val Gly Gln
595 600 605
Pro Val Val His Thr Ser Ala Met Leu Gln Val Thr Gly Glu Ala Glu
610 615 620
Tyr Thr Asp Asp Thr Pro Thr Pro Pro Asn Thr Leu His Ala Ala Leu
625 630 635 640
Val Leu Ser Thr Lys Ala His Ala Arg Ile Leu Ser Ile Asp Ala Ser
645 650 655
Leu Ala Lys Ser Ser Pro Gly Phe Ala Gly Leu Phe Leu Ser Lys Asp
660 665 670
Val Pro Gly Ala Asn His Thr Gly Pro Val Ile His Asp Glu Glu Val
675 680 685
Phe Ala Ser Asp Val Val Thr Cys Val Gly Gln Ile Val Gly Leu Val
690 695 700
Val Ala Asp Thr Arg Asp Asn Ala Lys Ala Ala Ala Asn Lys Val Asn
705 710 715 720
Ile Glu Tyr Ser Glu Leu Pro Ala Ile Leu Ser Ile Glu Glu Ala Val
725 730 735
Lys Ala Gly Ser Phe His Pro Asn Ser Lys Arg Cys Leu Val Lys Gly
740 745 750
Asn Val Glu Gln Cys Phe Leu Ser Gly Ala Cys Asp Arg Ile Ile Glu
755 760 765
Gly Lys Val Gln Val Gly Gly Gln Glu His Phe Tyr Met Glu Pro Gln
770 775 780
Ser Thr Leu Val Trp Pro Val Asp Ser Gly Asn Glu Ile His Met Ile
785 790 795 800
Ser Ser Thr Gln Ala Pro Gln Lys His Gln Lys Tyr Val Ala Asn Val
805 810 815
Leu Gly Leu Pro Gln Ser Arg Val Val Cys Lys Thr Lys Arg Ile Gly
820 825 830
Gly Gly Phe Gly Gly Lys Glu Thr Arg Ser Ala Ile Phe Ala Ala Ala
835 840 845
Ala Ser Val Ala Ala Tyr Cys Leu Arg Gln Pro Val Lys Leu Val Leu
850 855 860
Asp Arg Asp Ile Asp Met Met Thr Thr Gly Gln Arg His Ser Phe Leu
865 870 875 880
Gly Lys Tyr Lys Val Gly Phe Thr Asp Asp Gly Lys Ile Leu Ala Leu
885 890 895
Asp Leu Asp Val Tyr Asn Asn Gly Gly His Ser His Asp Leu Ser Leu
900 905 910
Pro Val Leu Glu Arg Ala Met Phe His Ser Asp Asn Val Tyr Asp Ile
915 920 925
Pro Asn Val Arg Val Asn Gly Gln Val Cys Phe Thr Asn Phe Pro Ser
930 935 940
Asn Thr Ala Phe Arg Gly Phe Gly Gly Pro Gln Ala Met Leu Ile Ala
945 950 955 960
Glu Asn Trp Ile Gln His Met Ala Thr Glu Leu Lys Arg Ser Pro Glu
965 970 975
Glu Ile Lys Glu Leu Asn Phe Gln Ser Glu Gly Ser Val Leu His Tyr
980 985 990
Gly Gln Leu Leu Gln Asn Cys Thr Ile His Ser Val Trp Asp Glu Leu
995 1000 1005
Lys Val Ser Cys Asn Phe Met Glu Ala Arg Lys Ala Val Ile Asp Phe
1010 1015 1020
Asn Asn Asn Asn Arg Trp Arg Lys Arg Gly Ile Ala Met Val Pro Thr
1025 1030 1035 1040
Lys Phe Gly Ile Ser Phe Thr Thr Lys Phe Met Asn Gln Ala Gly Ala
1045 1050 1055
Leu Val Gln Val Tyr Thr Asp Gly Thr Val Leu Val Thr His Gly Gly
1060 1065 1070
Val Glu Met Gly Gln Gly Leu His Thr Lys Val Ala Gln Val Ala Ala
1075 1080 1085
Ser Ser Phe Asn Ile Pro Leu Ser Ser Ile Phe Ile Ser Glu Thr Ser
1090 1095 1100
Thr Asp Lys Val Pro Asn Ala Thr Pro Thr Ala Ala Ser Ala Ser Ser
1105 1110 1115 1120
Asp Leu Tyr Gly Ala Ala Val Leu Asp Ala Cys Gln Gln Ile Met Ala
1125 1130 1135
Arg Met Glu Pro Val Ala Ser Arg Gly Asn His Lys Ser Phe Ala Glu
1140 1145 1150
Leu Val Leu Ala Cys Tyr Leu Glu Arg Ile Asp Leu Ser Ala His Gly
1155 1160 1165
Phe Tyr Ile Thr Pro Asp Val Gly Phe Asp Trp Val Ser Gly Lys Gly
1170 1175 1180
Thr Pro Phe Tyr Tyr Phe Thr Tyr Gly Ala Ala Phe Ala Glu Val Glu
1185 1190 1195 1200
Ile Asp Thr Leu Thr Gly Asp Phe His Thr Arg Thr Val Asp Ile Val
1205 1210 1215
Met Asp Leu Gly Cys Ser Ile Asn Pro Ala Ile Asp Ile Gly Gln Ile
1220 1225 1230
Glu Gly Gly Phe Ile Gln Gly Leu Gly Trp Ala Ala Leu Glu Glu Leu
1235 1240 1245
Lys Trp Gly Asp Asp Asn His Lys Trp Ile Arg Pro Gly His Leu Phe
1250 1255 1260
Thr Cys Gly Pro Gly Ser Tyr Lys Ile Pro Ser Val Asn Asp Ile Pro
1265 1270 1275 1280
Leu Asn Phe Lys Val Ser Leu Leu Lys Gly Val Leu Asn Pro Lys Val
1285 1290 1295
Ile His Ser Ser Lys Ala Val Gly Glu Pro Pro Phe Phe Leu Gly Ser
1300 1305 1310
Ala Val Leu Phe Ala Ile Lys Asp Ala Ile Ser Ala Ala Arg Ala Glu
1315 1320 1325
Glu Gly His Phe Asp Trp Phe Pro Leu Asp Ser Pro Ala Thr Pro Glu
1330 1335 1340
Arg Ile Arg Met Ala Cys Val Asp Ser Ile Thr Lys Lys Phe Ala Ser
1345 1350 1355 1360
Val Tyr Tyr Arg Pro Lys Leu Ser Val
1365

Claims (3)

1.水稻叶片衰老控制基因ES2,其特征在于:该水稻叶片衰老控制基因ES2的核苷酸序列如SEQ ID NO:1所示。
2.如权利要求1所述的水稻叶片早衰性状基因ES2的用途,其特征在于:调控水稻叶片的衰老。
3.根据权利要求2所述的水稻叶片早衰性状基因ES2的用途,其特征在于:改变水稻植株的产量和品质。
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