本发明涉及一种抗虫基因t-dna载体的构建及其应用。
(二)背景技术
害虫给全球农业生产带来每年约80亿美元的损失,害虫的防治目前主要依靠使用化学农药,但是农药的残留会对人体健康和环境带来不良影响。利用生物技术方法培育含有抗虫基因的转基因抗虫农作物,可以大幅度降低化学杀虫剂的使用,有效保护农作物免受害虫为害,目前转基因抗虫玉米、棉花等已经大量推广种植。
转基因作物抗虫的关键技术是获得性能优良的杀虫蛋白质,杀虫蛋白质有多种。比较常用的是bt杀虫晶体蛋白,如cry1ab、cry1c等,它们已被大量运用于转基因抗虫作物;近年来在bt中发现的另一种营养期杀虫蛋白也被证明具有较好的抗虫活性,如vip3a等。单个杀虫毒素往往杀虫谱比较窄;同时,长期大量地使用单一的杀虫蛋白质,还可能引起害虫抗性的产生和发展。因此,获得高杀虫活性的新型蛋白质杀虫毒素,对提高杀虫能力和减缓害虫抗性的发生具有重要的应用价值。
(三)
技术实现要素:
本发明目的是提供一种高表达抗虫蛋白的重组载体的dna序列及其构建方法,以及在获得转基因抗虫农作物中的应用。
本发明采用的技术方案是:
本发明提供一种抗虫基因t-dna载体,所述t-dna载体包含了一个具有花椰菜花叶病毒camv35s启动子以及水稻肌动蛋白actin1内含子序列来启动抗虫基因表达的完整表达框,具体所述t-dna载体包含抗虫基因表达框,所述抗虫基因表达框是由抗虫基因、复合启动子和终止子拼接构成;复合启动子由camv35s和actin-intron拼接而成。
进一步,所述的抗虫基因由cry1ab和vip3a连接而成。
进一步,所述抗虫基因是将编码bt杀虫晶体蛋白cry1ab的核苷酸序列(seqidno:1所示)与编码bt营养期杀虫蛋白vip3a的核苷酸序列(seqidno:2所示)通过连接肽基因序列连接构成,完整的抗虫基因的核苷酸序列为seqidno:3所示。
进一步,所述camv35s核苷酸序列为seqidno:4所示,所述actin-intron核苷酸序列为seqidno:5所示。
进一步,所述终止子为终止子pepc-ter,核苷酸序列为seqidno:6所示。
本发明所述t-dna核苷酸序列为seqidno:7所示。
本发明还涉及一种所述抗虫基因t-dna载体在制备抗虫植物细胞中的应用,所述植物为单子叶植物,优选为玉米或水稻。
本行业的技术人员均知道以下理论:
1)一种用于制备抗虫植物细胞的转化载体中必须包含整个抗虫基因的表达框,由启动子、基因、终止子三个组件构成;
2)并非任意的启动子都能高效启动抗虫基因的表达,不同的启动子对于抗虫蛋白的表达效果相差很大。
与现有技术相比,本发明有益效果主要体现在:
1)由camv35s与水稻肌动蛋白actin1内含子序列拼接而成的复合启动子,可以高效启动抗虫基因的表达;
2)将上述抗虫基因的表达框的t-dna转入植物后,获得的转基因株系中抗虫蛋白的表达量能够显著提高。
(四)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:
本发明以下实施例中所使用的分子生物学和生物化学方法均为已知的技术。在ausubel编写的johnwileyandsons公司出版的currentprotocolsinmolecularbiology,和j.sambrook等编写的coldspringharborlaboratorypress(2001)出版的molecularcloning:alaboratorymanual,3rded.等文献均有详细的说明。
实施例1、抗虫基因表达框的构建
由上海生工人工合成抗虫基因cry1ab核苷酸序列为seqidno:1,vip3a核苷酸序列为seqidno:2,cry1ab基因与vip3a基因通过连接肽基因序列连接为一个完整的抗虫基因,该抗虫基因的序列为seqidno:3。由上海生工人工合成启动子camv35s的核苷酸序列为seqidno:4,编码水稻肌动蛋白的内含子actin-intron核苷酸序列为seqidno:5。
抗虫基因的构建过程:cry1ab片段由bamhi和xmai酶切获得,vip3a片段由xmai和saci酶切获得。将上述两个片段以t4dna聚合酶连接到中间载体中,得到一个两端的酶切位点为bamhi和saci的完整的抗虫基因。
启动子35s/actin-intron的构建过程:camv35s片段由hindiii和xhoi酶切获得,actin-intron片段由xhoi和bamhi酶切获得。将上述两个片段以t4dna聚合酶连接到中间载体中,得到一个两端的酶切位点为hindiii和bamhi的完整的复合启动子。将上述完整的抗虫基因和完整的复合启动子分别酶切,连同终止子(玉米磷酸烯醇式丙酮酸羧化酶基因的终止子pepc-ter,序列为seqidno:6)连接到转化载体pcambia1300-g10(zhao,q.,etal.(2014)"expressionofcry1abandcry2abbyapolycistronictransgenewithaself-cleavagepeptideinrice."plosone9(10):e110006.)中,得到用于制备植物抗虫细胞的转化载体pcam-1ab-v3a,载体中t-dna部分的序列为seqidno:7。
相同条件下,以水稻肌动蛋白启动子posactin1替换上述p35s/actin-intron,其余均保持一致,作为对照组ck。所得的对照t-dna载体用于转化制备植物抗虫细胞。
实施例2、转基因玉米的获得
玉米转化事件所用的方法是农杆菌介导方法,根据frame等报道的方法和培养基配方(plantphysiol,2002,129:13-22)进行转化,具体步骤如下:取授粉后8~10天的hi-2玉米穗。收集所有的未成熟胚(大小为1.0~1.5mm),将含有实施例1构建的t-dna载体pcam-1ab-v3a的农杆菌与未成熟胚共培育2~3天(22℃)。转移未成熟胚到愈伤诱导培养基上挂(含200mg/l的timentin杀农杆菌),28℃暗培养10~14天。将所有的愈伤组织转移到带有2.0mm草甘膦的筛选培养基上,28℃暗培养2~3周。
转移所有的组织到新鲜的筛选培养基上,28℃暗培养2~3周。随后转移所有筛选后成活的胚性组织到再生培养基上,28℃暗培养10~14天,每皿一个株系。转移胚性组织到新鲜的再生培养基上,26℃光照培养10~14天。转移所有发育完全的植株到生根培养基上,26℃光照培养直到根发育完全,获得转基因玉米植株。
同样条件下,用含对照组t-dna载体的农杆菌转化玉米,获得对照转基因玉米植株。
实施例3、转基因农作物抗虫能力的测定
利用玉米螟和棉铃虫测定通过实施例2获得的10个转基因玉米系的抗虫活性。取实施例2获得的转基因玉米嫩叶饲喂一龄幼虫,每叶接虫10头,28℃暗培养5天后记录数据。新生玉米螟一龄幼虫取食10个转基因玉米系后,全部100%死亡;新生棉铃虫一龄幼虫取食10个转基因玉米系后,有8个系的棉铃虫100%死亡,其他两个系的棉铃虫死亡率在60%~90%之间。
同时,通过实施例2的方法,在玉米中转入对照组ck的t-dna,获得posactin1启动抗虫基因表达的对照转基因玉米株系。利用玉米螟和棉铃虫进行上述抗虫活性鉴定。结果显示,新生玉米螟一龄幼虫取食10个转基因玉米系后,全部100%死亡;新生棉铃虫一龄幼虫取食10个转基因玉米系后,有2个系的棉铃虫100%死亡,其余6个系的棉铃虫死亡率在30%~60%之间。
进一步,对转基因玉米株系进行抗虫蛋白的elisa鉴定。结果显示,在转基因株系中,p35s/actin-intron启动抗虫蛋白的表达量比对照组中高10-30倍(如下表1所示)。
表1转基因玉米株系中的抗虫蛋白表达量测定
最后,还需要注意的是,以上列举的仅是本发明的若干实施例。显然,本发明不限于以上实施例,还可以有许多延伸和拓展。本领域的普通技术人员能从本发明公开的内容直接到导出或联想到的所有延伸,均应认为是本发明的保护范围。
序列表
<110>浙江大学
<120>一种抗虫基因t-dna载体及其应用
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caaggagaacgtgaagaccagcggcagcgaggtgggcaacgtgtacaacttcctgatcgt2820
gctgaccgccctgcaggccaaggccttcctgaccctgaccacctgcaggaagctgctggg2880
cctggccgacatcgactacaccagcatcatgaacgagcacctgaacaaggagaaggagga2940
gttcagggtgaacatcctgccgaccctgagcaacaccttcagcaacccgaactacgccaa3000
ggtgaagggcagcgacgaggacgccaagatgatcgtggaggccaagccgggccacgccct3060
ggtgggcttcgagatcagcaacgacagcatgaccgtgctgaaggtgtacgaggccaagct3120
gaagcagaactaccaggtggacaaggacagcctgagcgaggtgatctacagcgacatgga3180
caagctgctgtgcccggaccagagcgagcagatctactacaccaacaacatcgtgttccc3240
gaacgagtacgtgatcaccaagatcgacttcaccaagaagatgaagaccctgaggtacga3300
ggtgaccgccaacagctacgacagcagcaccggcgagatcgacctgaacaagaagaaggt3360
ggagagcagcgaggccgagtacaggaccctgagcgccaacaacgacggcgtgtacatgcc3420
gctgggcgtgatcagcgagaccttcctgaccccgatcaacggcttcggcctgcaggccga3480
cgagaacagcaggctgatcaccctgacctgcaagagctacctgagggagctgctgctggc3540
caccgacctgagcaacaaggagaccaagctgatcgtgccgccgatcagcttcatcagcaa3600
catcgtggagaacggcaacctggagggcgagaacctggagccgtggatcgccaacaacaa3660
gaacgcctacgtggaccacaccggcggcatcaacggcaccaaggtgctgtacgtgcacaa3720
ggacggcgagttcagccagttcgtgggcggcaagctgaagagcaagaccgagtacgtgat3780
ccagtacatcgtgaagggcaaggccagcatctacctgaaggacgagaacaccggctacat3840
ccactacgaggacaccaacaacaacctggaggactaccagaccatcaacaagaggttcac3900
caccggcaccgacctgaagggcgtgtacctgatcctgaagagccagaacggcgacgaggc3960
ctggggcgacaacttcatcatcctggagatcagcccgagcgagaagctgctgagcccgga4020
gctgatcaacaccaacaactggaccagcaccggcagcaccaacatcagcggcaacaccct4080
gaccctgtaccagggcggcaggggcatcctgaagcagaacctgcagctggacagcttcag4140
cacctacagggtgtacttcagcgtgagcggcgacgccaacgtgaggatcaggaacagcag4200
ggaggtgctgttcgagaagaggtacatgagcggcgccaaggacgtgagcgagatgttcac4260
caccaagttcgagaaggacaacttctacatcgagctgagccagggcaacaacctgtacgg4320
cggcccgatcgtgcacttctacgacgtgagcatcaagtaagagctc4366
<210>4
<211>799
<212>dna
<213>未知(unknown)
<400>4
aagcttaggtacctggtggagcacgacactctcgtctactccaagaatatcaaagataca60
gtctcagaagaccaaagggctattgagacttttcaacaaagggtaatatcgggaaacctc120
ctcggattccattgcccagctatctgtcacttcatcaaaaggacagtagaaaaggaaggt180
ggcacctacaaatgccatcattgcgataaaggaaaggctatcgttcaagatgcctctgcc240
gacagtggtcccaaagatggacccccacccacgaggagcatcgtggaaaaagaagacgtt300
ccaaccacgtcttcaaagcaagtggattgatgtgataacatggtggagcacgacactctc360
gtctactccaagaatatcaaagatacagtctcagaagaccaaagggctattgagactttt420
caacaaagggtaatatcgggaaacctcctcggattccattgcccagctatctgtcacttc480
atcaaaaggacagtagaaaaggaaggtggcacctacaaatgccatcattgcgataaagga540
aaggctatcgttcaagatgcctctgccgacagtggtcccaaagatggacccccacccacg600
aggagcatcgtggaaaaagaagacgttccaaccacgtcttcaaagcaagtggattgatgt660
gatatctccactgacgtaagggatgacgcacaatcccactatccttcgcaagaccttcct720
ctatataaggaagttcatttcatttggagaggacacgctgaaatcaccagtctctctcta780
caaatctatctctctcgag799
<210>5
<211>549
<212>dna
<213>未知(unknown)
<400>5
ctcgagaccaccaccaccaccaccacctcctcccccctcgctgccggacgacgagctcct60
cccccctccccctccgccgccgccggtaaccaccccgcccctctcctctttctttctccg120
ttttttttttcgtctcggtctcgatctttggccttggtagtttgggtgggcgagagcggc180
ttcgtcgcccagatcggtgcgcgggaggggcgggatctcgcggctggcgtctccgggcgt240
gagtcggcccggatcctcgcggggaatggggctctcggatgtagatctgcgatccgccgt300
tgttgggggagatgatggggggtttaaaatttccgccatgctaaacaagatcaggaagag360
gggaaaagggcactatggtttatatttttatatatttctgctgcttcgtcaggcttagat420
gtgctagatctttctttcttctttttgtggtagaatttgaatccctcagcattgttcatc480
ggtagtttttcttttcatgatttgtgacaaatgcagcctcgtgcggagcttttttgtagg540
tagggatcc549
<210>6
<211>203
<212>dna
<213>未知(unknown)
<400>6
gagctctagatctgttctgcacaaagtggagtagtcagtcatcgatcaggaaccagacac60
cagacttttattcatacagtgaagtgaagtgaagtgcagtgcagtgagttgctggttttt120
gtacaacttagtatgtatttgtatttgtaaaatacttctatcaataaaatttctaattcc180
taaaaccaaaatccaggggtacc203
<210>7
<211>10046
<212>dna
<213>未知(unknown)
<400>7
taaacgctcttttctcttaggtttacccgccaatatatcctgtcaaacactgatagttta60
aactgaaggcgggaaacgacaatctgatccaagctcaagctgctctagcattcgccattc120
aggctgcgcaactgttgggaagggcgatcggtgcgggcctcttcgctattacgccagctg180
gcgaaagggggatgtgctgcaaggcgattaagttgggtaacgccagggttttcccagtca240
cgacgttgtaaaacgacggccagtgccaagctttggtggagcacgacactctcgtctact300
ccaagaatatcaaagatacagtctcagaagaccaaagggctattgagacttttcaacaaa360
gggtaatatcgggaaacctcctcggattccattgcccagctatctgtcacttcatcaaaa420
ggacagtagaaaaggaaggtggcacctacaaatgccatcattgcgataaaggaaaggcta480
tcgttcaagatgcctctgccgacagtggtcccaaagatggacccccacccacgaggagca540
tcgtggaaaaagaagacgttccaaccacgtcttcaaagcaagtggattgatgtgataaca600
tggtggagcacgacactctcgtctactccaagaatatcaaagatacagtctcagaagacc660
aaagggctattgagacttttcaacaaagggtaatatcgggaaacctcctcggattccatt720
gcccagctatctgtcacttcatcaaaaggacagtagaaaaggaaggtggcacctacaaat780
gccatcattgcgataaaggaaaggctatcgttcaagatgcctctgccgacagtggtccca840
aagatggacccccacccacgaggagcatcgtggaaaaagaagacgttccaaccacgtctt900
caaagcaagtggattgatgtgatatctccactgacgtaagggatgacgcacaatcccact960
atccttcgcaagaccttcctctatataaggaagttcatttcatttggagaggacacgctg1020
aaatcaccagtctctctctacaaatctatctctctcgagaccaccaccaccaccaccacc1080
tcctcccccctcgctgccggacgacgagctcctcccccctccccctccgccgccgccggt1140
aaccaccccgcccctctcctctttctttctccgttttttttttcgtctcggtctcgatct1200
ttggccttggtagtttgggtgggcgagagcggcttcgtcgcccagatcggtgcgcgggag1260
gggcgggatctcgcggctggcgtctccgggcgtgagtcggcccggatcctcgcggggaat1320
ggggctctcggatgtagatctgcgatccgccgttgttgggggagatgatggggggtttaa1380
aatttccgccatgctaaacaagatcaggaagaggggaaaagggcactatggtttatattt1440
ttatatatttctgctgcttcgtcaggcttagatgtgctagatctttctttcttctttttg1500
tggtagaatttgaatccctcagcattgttcatcggtagtttttcttttcatgatttgtga1560
caaatgcagcctcgtgcggagcttttttgtaggtagggatccaacaatggacaacaaccc1620
caacatcaacgagtgcatcccctacaactgcctgagcaaccccgaggtggaggtgctggg1680
cggcgagcgcatcgagaccggctacacccccatcgacatcagcctgagcctgacccagtt1740
cctgctgagcgagttcgtgcccggcgccggcttcgtgctgggcctggtggacatcatctg1800
gggcatcttcggccccagccagtgggacgccttcctggtgcagatcgagcagctgatcaa1860
ccagcgcatcgaggagttcgcccgcaaccaggccatcagccgcctggagggcctgagcaa1920
cctgtaccaaatctacgccgagagcttccgcgagtgggaggccgaccccaccaaccccgc1980
cctgcgcgaggagatgcgcatccagttcaacgacatgaacagcgccctgaccaccgccat2040
ccccctgttcgccgtgcagaactaccaggtgcccctgctgagcgtgtacgtgcaggccgc2100
caacctgcacctgagcgtgctgcgcgacgtcagcgtgttcggccagcgctggggcttcga2160
cgccgccaccatcaacagccgctacaacgacctgacccgcctgatcggcaactacaccga2220
ccacgccgtgcgctggtacaacaccggcctggagcgcgtgtggggtcccgacagccgcga2280
ctggatcaggtacaaccagttccgccgcgagctgaccctgaccgtgctggacatcgtgag2340
cctgttccccaactacgacagccgcacctaccccatccgcaccgtgagccagctgacccg2400
cgagatttacaccaaccccgtgctggagaacttcgacggcagcttccgcggcagcgccca2460
gggcatcgagggcagcatccgcagcccccacctgatggacatcctgaacagcatcaccat2520
ctacaccgacgcccaccgcggcgagtactactggagcggccaccagatcatggccagccc2580
cgtcggcttcagcggccccgagttcaccttccccctgtacggcaccatgggcaacgctgc2640
acctcagcagcgcatagtggcacagctgggccagggagtgtaccgcaccctgagcagcac2700
cctgtaccgtcgacctttcaacatcggcatcaacaaccagcagctgagcgtgctggacgg2760
caccgagttcgcctacggcaccagcagcaacctgcccagcgccgtgtaccgcaagagcgg2820
caccgtggacagcctggacgagatcccccctcagaacaacaacgtgccacctcgacaggg2880
cttcagccaccgtctgagccacgtgagcatgttccgcagtggcttcagcaacagcagcgt2940
gagcatcatccgtgcacctatgttcagctggattcaccgcagtgccgagttcaacaacat3000
catccccagcagccagatcacccagatccccctgaccaagagcaccaacctgggcagcgg3060
caccagcgtggtgaagggccccggcttcaccggcggcgacatcctgcgccgcaccagccc3120
cggccagatcagcaccctgcgcgtgaacatcaccgcccccctgagccagcgctaccgcgt3180
ccgcatccgctacgccagcaccaccaacctgcagttccacaccagcatcgacggccgccc3240
catcaaccagggcaacttcagcgccaccatgagcagcggcagcaacctgcagagcggcag3300
cttccgcaccgtgggcttcaccacccccttcaacttcagcaacggcagcagcgtgttcac3360
cctgagcgcccacgtgttcaacagcggcaacgaggtgtacatcgaccgcatcgagttcgt3420
gcccgccgaggtgaccttcgaggccgagtacgacctggagagggctcagaaggccgtgaa3480
cgagctgttcaccagcagcaaccagatcggcctgaagaccgacgtgaccgactaccacat3540
cgatcaggtgcgaggccccggtggagcaggtggagcaggtggagggggtaaaggaaacaa3600
caccaagctgaacgccagggccctgccgagcttcatcgactacttcaacggcatctacgg3660
cttcgccaccggcatcaaggacatcatgaacatgatcttcaagaccgacaccggcggcaa3720
cctgaccctggacgagatcctgaagaaccagcagctgctgaacgagatcagcggcaagct3780
ggacggcgtgaacggcagcctgaacgacctgatcgcccagggcaacctgaacaccgagct3840
gagcaaggagatcctgaagatcgccaacgagcagaaccaggtgctgaacgacgtgaacaa3900
caagctggacgccatcaacaccatgctgcacatctacctgccgaagatcaccagcatgct3960
gagcgacgtgatgaagcagaactacgccctgagcctgcaggtggagtacctgagcaagca4020
gctgaaggagatcagcgacaagctggacgtgatcaacgtgaacgtgctgatcaacagcac4080
cctgaccgagatcaccccggcctaccagaggatcaagtacgtgaacgagaagttcgagga4140
gctgaccttcgccaccgagaccaccctgaaggtgaagaaggacagcagcccggccgacat4200
cctggacgagctgaccgagctgaccgagctggccaagagcgtgaccaagaacgacgtgga4260
cggcttcgagttctacctgaacaccttccacgacgtgatggtgggcaacaacctgttcgg4320
caggagcgccctgaagaccgccagcgagctgatcgccaaggagaacgtgaagaccagcgg4380
cagcgaggtgggcaacgtgtacaacttcctgatcgtgctgaccgccctgcaggccaaggc4440
cttcctgaccctgaccacctgcaggaagctgctgggcctggccgacatcgactacaccag4500
catcatgaacgagcacctgaacaaggagaaggaggagttcagggtgaacatcctgccgac4560
cctgagcaacaccttcagcaacccgaactacgccaaggtgaagggcagcgacgaggacgc4620
caagatgatcgtggaggccaagccgggccacgccctggtgggcttcgagatcagcaacga4680
cagcatgaccgtgctgaaggtgtacgaggccaagctgaagcagaactaccaggtggacaa4740
ggacagcctgagcgaggtgatctacagcgacatggacaagctgctgtgcccggaccagag4800
cgagcagatctactacaccaacaacatcgtgttcccgaacgagtacgtgatcaccaagat4860
cgacttcaccaagaagatgaagaccctgaggtacgaggtgaccgccaacagctacgacag4920
cagcaccggcgagatcgacctgaacaagaagaaggtggagagcagcgaggccgagtacag4980
gaccctgagcgccaacaacgacggcgtgtacatgccgctgggcgtgatcagcgagacctt5040
cctgaccccgatcaacggcttcggcctgcaggccgacgagaacagcaggctgatcaccct5100
gacctgcaagagctacctgagggagctgctgctggccaccgacctgagcaacaaggagac5160
caagctgatcgtgccgccgatcagcttcatcagcaacatcgtggagaacggcaacctgga5220
gggcgagaacctggagccgtggatcgccaacaacaagaacgcctacgtggaccacaccgg5280
cggcatcaacggcaccaaggtgctgtacgtgcacaaggacggcgagttcagccagttcgt5340
gggcggcaagctgaagagcaagaccgagtacgtgatccagtacatcgtgaagggcaaggc5400
cagcatctacctgaaggacgagaacaccggctacatccactacgaggacaccaacaacaa5460
cctggaggactaccagaccatcaacaagaggttcaccaccggcaccgacctgaagggcgt5520
gtacctgatcctgaagagccagaacggcgacgaggcctggggcgacaacttcatcatcct5580
ggagatcagcccgagcgagaagctgctgagcccggagctgatcaacaccaacaactggac5640
cagcaccggcagcaccaacatcagcggcaacaccctgaccctgtaccagggcggcagggg5700
catcctgaagcagaacctgcagctggacagcttcagcacctacagggtgtacttcagcgt5760
gagcggcgacgccaacgtgaggatcaggaacagcagggaggtgctgttcgagaagaggta5820
catgagcggcgccaaggacgtgagcgagatgttcaccaccaagttcgagaaggacaactt5880
ctacatcgagctgagccagggcaacaacctgtacggcggcccgatcgtgcacttctacga5940
cgtgagcatcaagtaagagctctagatctgttctgcacaaagtggagtagtcagtcatcg6000
atcaggaaccagacaccagacttttattcatacagtgaagtgaagtgaagtgcagtgcag6060
tgagttgctggtttttgtacaacttagtatgtatttgtatttgtaaaatacttctatcaa6120
taaaatttctaattcctaaaaccaaaatccaggggtaccgcatgcctacagtgcagcgtg6180
acccggtcgtgcccctctctagagataatgagcattgcatgtctaagttataaaaaatta6240
ccacatattttttttgtcacacttgtttgaagtgcagtttatctatctttatacatatat6300
ttaaactttactctacgaataatataatctatagtactacaataatatcagtgttttaga6360
gaatcatataaatgaacagttagacatggtctaaaggacaattgagtattttgacaacag6420
gactctacagttttatctttttagtgtgcatgtgttctcctttttttttgcaaatagctt6480
cacctatataatacttcatccattttattagtacatccatttagggtttagggttaatgg6540
tttttatagactaatttttttagtacatctattttattctattttagcctctaaattaag6600
aaaactaaaactctattttagtttttttatttaataatttagatataaaatagaataaaa6660
taaagtgactaaaaattaaacaaataccctttaagaaattaaaaaaactaaggaaacatt6720
tttcttgtttcgagtagataatgccagcctgttaaacgccgtcgacgagtctaacggaca6780
ccaaccagcgaaccagcagcgtcgcgtcgggccaagcgaagcagacggcacggcatctct6840
gtcgctgcctctggacccctctcgagagttccgctccaccgttggacttgctccgctgtc6900
ggcatccagaaattgcgtggcggagcggcagacgtgagccggcacggcaggcggcctcct6960
cctcctctcacggcacggcagctacgggggattcctttcccaccgctccttcgctttccc7020
ttcctcgcccgccgtaataaatagacaccccctccacaccctctttccccaacctcgtgt7080
tgttcggagcgcacacacacacaaccagatctcccccaaatccacccgtcggcacctccg7140
cttcaaggtacgccgctcgtcctccccccccccccctctctaccttctctagatcggcgt7200
tccggtccatggttagggcccggtagttctacttctgttcatgtttgtgttagatccgtg7260
tttgtgttagatccgtgctgctagcgttcgtacacggatgcgacctgtacgtcagacacg7320
ttctgattgctaacttgccagtgtttctctttggggaatcctgggatggctctagccgtt7380
ccgcagacgggatcgatttcatgattttttttgtttcgttgcatagggtttggtttgccc7440
ttttcctttatttcaatatatgccgtgcacttgtttgtcgggtcatcttttcatgctttt7500
ttttgtcttggttgtgatgatgtggtctggttgggcggtcgttctagatcggagtagaat7560
tctgtttcaaactacctggtggatttattaattttggatctgtatgtgtgtgccatacat7620
attcatagttacgaattgaagatgatggatggaaatatcgatctaggataggtatacatg7680
ttgatgcgggttttactgatgcatatacagagatgctttttgttcgcttggttgtgatga7740
tgtggtgtggttgggcggtcgttcattcgttctagatcggagtagaatactgtttcaaac7800
tacctggtgtatttattaattttggaactgtatgtgtgtgtcatacatcttcatagttac7860
gagtttaagatggatggaaatatcgatctaggataggtatacatgttgatgtgggtttta7920
ctgatgcatatacatgatggcatatgcagcatctattcatatgctctaaccttgagtacc7980
tatctattataataaacaagtatgttttataattattttgatcttgatatacttggatga8040
tggcatatgcagcagctatatgtggatttttttagccctgccttcatacgctatttattt8100
gcttggtactgtttcttttgtcgatgctcaccctgttgtttggtgttacttctgcaggtc8160
gactctagaaacaatggcggcgaccatggcgtccaacgctgcggctgcggctgcggtgtc8220
cctggaccaggccgtggctgcgtcggcagcgttctcgtcgcggaagcagctgcggctgcc8280
tgccgcagcgcgcggagggatgcgggtgcgggtgcgggcgcggggtcggcgggaggcggt8340
ggtggtggcgtccgcgtcgtcgtcgtcggtggcagcgccggcggcgaaggctgagatgct8400
acacggtgcaagcagccggccggcaaccgctcgcaaatcttccggcctttcgggaacggt8460
caggattccgggcgataagtccatatcccaccggtcgttcatgttcggcggtcttgccag8520
cggtgagacgcgcatcacgggcctgcttgaaggtgaggacgtgatcaataccgggaaggc8580
catgcaggctatgggagcgcgtatccgcaaggaaggtgacacatggatcattgacggcgt8640
tgggaatggcggtctgctcgcccctgaggcccctctcgacttcggcaatgcggcgacggg8700
ctgcaggctcactatgggactggtcggggtgtacgacttcgatagcacgttcatcggaga8760
cgcctcgctcacaaagcgcccaatgggccgcgttctgaacccgttgcgcgagatgggcgt8820
acaggtcaaatccgaggatggtgaccgtttgcccgttacgctgcgcgggccgaagacgcc8880
taccccgattacctaccgcgtgccaatggcatccgcccaggtcaagtcagccgtgctcct8940
cgccggactgaacactccgggcatcaccacggtgatcgagcccatcatgaccagggatca9000
taccgaaaagatgcttcaggggtttggcgccaacctgacggtcgagacggacgctgacgg9060
cgtcaggaccatccgccttgagggcaggggtaaactgactggccaagtcatcgatgttcc9120
gggagacccgtcgtccacggccttcccgttggttgcggcgctgctcgtgccggggagtga9180
cgtgaccatcctgaacgtcctcatgaacccgaccaggaccggcctgatcctcacgcttca9240
ggagatgggagccgacatcgaggtgatcaacccgcgcctggcaggcggtgaagacgttgc9300
ggatctgcgcgtgcgctcctctaccctgaagggcgtgacggtcccggaagatcgcgcgcc9360
gtccatgatagacgagtatcctattctggccgtcgccgctgcgttcgccgaaggggccac9420
ggtcatgaacggtcttgaggaactccgcgtgaaggaatcggatcgcctgtcggcggtggc9480
caatggcctgaagctcaacggtgttgactgcgacgagggtgagacctcactcgtggtccg9540
tggccggcctgatggcaagggcctcggcaacgccagtggagcggccgtcgccacgcacct9600
cgatcatcgcatcgcgatgtccttcttggtgatgggtctcgtctcagagaacccggtgac9660
cgtcgatgacgccacgatgatagcgacgagcttcccagagttcatggatctgatggcggg9720
cctcggggccaagatcgaactgtctgacacgaaggccgcttgactcgagtttctccataa9780
taatgtgtgagtagttcccagataagggaattagggttcctatagggtttcgctcatgtg9840
ttgagcatataagaaacccttagtatgtatttgtatttgtaaaatacttctatcaataaa9900
atttctaattcctaaaaccaaaatccagtactaaaatccagatcccccgaattaattcgg9960
cgttaattcagtacattaaaaacgtccgcaatgtgttattaagttgtctaagcgtcaatt10020
tgtttacaccacaatatatcctgcca10046