Crops ›› 2018, Vol. 34 ›› Issue (5): 54-62.doi: 10.16035/j.issn.1001-7283.2018.05.009

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Identification and Expression Analysis of the Whole Glutathione S-Transferase Genome Family in Aegilops tauschii under Abiotic Stress

Ma Jianhui,Zhang Wenli,Gao Xiaolong,Zhang Daijing,Jiang Lina,Zhai Yanyu,Shao Yun,Li Chunxi   

  1. College of Life Sciences, Henan Normal University, Xinxiang 453007, Henan, China
  • Received:2018-03-08 Revised:2018-04-20 Online:2018-10-15 Published:2018-10-12
  • Contact: Chunxi Li

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Abstract:

Glutathione S-transferase (GST) is a multifunctional protease which involves in the regulation process of many abiotic stresses (drought, salt, low temperature, heavy metals) in plants. Aegilops tanschii is the donor of D genome for hexaploid wheat (Triticum aestivum, AABBDD), and the study on GST genome family in Aegilops tanschii (DD) will facilitate the further study of GST in hexaploid wheat. In this study, 114 GST genes from Aegilops tanschii were selected and classified into 6 subfamilies. Gene duplication analysis found that four pairs GST genes had been duplicated and they belonged to purify selection. The expression levels of some GST genes under environmental stress found that eight GST genes were highly expressed in root under drought and salt stress by qRT-PCR assay, in which three GST genes were up-regulated significantly responding to low temperature in root and leaf. This suggested there was a difference in the expression of GSTs in Aegilops tauschii responding to abiotic stress in root and leaf.

Key words: Aegilops tauschii, Glutathione S-transferase, Genome-wide screening, Abiotic stress

Table 1

The primer and sequences for qRT-PCR"

基因Gene 上游引物(5′-3′) Forward primer 下游引物(5′-3′) Reverse primer
AEGTA43277 GACGAGGTCTGGGCTTAT GCTTGTCATCAATGTAGGCG
AEGTA19581 GCGATGAAGCCCGTCCTGT TTCCACTCCACCGCCCTGT
AEGTA31937 ACACCGACGAGTCCAATA GGAAGAAAGGTCCATCAC
AEGTA27563 CGACCTCACCCATTTCTCC TCCCACCATGCCTTTACG
AEGTA27835 GGACCTTGGGCTTGGA CTACTCTGCTTTCTTTCGG
AEGTA15985 TCCGTGTCGTGTCTGCG CTCCCTCTCACACACCCACA
AEGTA32578 ACACCGAATCCTGAAACC CTCATCACCAACAACCTCC
AEGTA07316 GCCTACTATGCCGCCAAGA GAAGCGACTTGCCTCTGAC
Actin ACCTTCAGTTGCCCAGCAAT CAGAGTCAAGCACAATACCAGTTG

Table 2

Details of GST genes in Aegilops tauschii"

基因
Gene		 CDS 长度
CDS length (bp)		 等电点
pI		 相对分子质量
Mw (Da)		 结构域
Domain		 基因
Gene		 CDS 长度
CDS length (bp)		 等电点
pI		 相对分子质量
Mw (Da)		 结构域
Domain
AEGTA13657 390 5.79 14 719.93 GST-C AEGTA25963 372 5.05 13 533.33 GST-N
AEGTA13796 609 8.32 22 678.94 GST-C AEGTA25638 657 5.52 24 109.04 GST-N
AEGTA17736 2196 6.03 80 584.69 GST-C AEGTA25554 444 5.59 16 200.62 GST-N
AEGTA42620 960 9.49 35 732.50 GST-C AEGTA25408 609 5.70 21 048.37 GST-N
AEGTA32322 672 5.98 25 554.08 GST-C AEGTA23490 384 9.10 13 884.20 GST-N
AEGTA31936 1 203 8.26 45 449.39 GST-C AEGTA21507 705 5.48 25 157.07 GST-N
AEGTA29370 2 247 7.21 84 666.01 GST-C AEGTA20866 690 5.46 25 911.98 GST-N
AEGTA29002 642 5.73 24 116.71 GST-C AEGTA20545 501 9.69 19 060.96 GST-N
AEGTA27813 378 8.60 14 194.45 GST-C AEGTA19679 693 4.95 24 756.53 GST-N
AEGTA26775 639 5.58 23 948.80 GST-C AEGTA19581 642 5.54 23 959.65 GST-N
AEGTA26086 741 5.80 26 559.98 GST-C AEGTA18293 741 8.32 27 648.02 GST-N
AEGTA04558 813 6.36 29 861.92 GST-N AEGTA18074 477 5.78 17 388.99 GST-N
AEGTA05063 702 5.20 25 652.54 GST-N AEGTA01785 1 815 6.28 67 887.41 GST-N,GST-C
AEGTA05065 708 5.02 25 716.41 GST-N AEGTA06186 663 5.44 25 070.80 GST-N,GST-C
AEGTA06172 759 5.40 28 974.13 GST-N AEGTA06717 804 5.34 31 072.37 GST-N,GST-C
AEGTA07316 654 4.61 23 214.00 GST-N AEGTA07317 693 5.86 25 879.92 GST-N,GST-C
基因
Gene		 CDS 长度
CDS length (bp)		 等电点
pI		 相对分子质量
Mw (Da)		 结构域
Domain		 基因
Gene		 CDS 长度
CDS length (bp)		 等电点
pI		 相对分子质量
Mw (Da)		 结构域
Domain
AEGTA09722 705 5.30 25 149.91 GST-N AEGTA08779 711 8.09 26 568.83 GST-N,GST-C
AEGTA09973 681 5.71 25 328.09 GST-N AEGTA08830 651 5.90 24 455.20 GST-N,GST-C
AEGTA10110 765 5.33 28 262.30 GST-N AEGTA09230 666 5.31 24 986.57 GST-N,GST-C
AEGTA10138 708 5.53 25 204.16 GST-N AEGTA09762 672 6.25 25 398.78 GST-N,GST-C
AEGTA10411 627 5.40 22 926.60 GST-N AEGTA09817 546 6.05 20 564.77 GST-N,GST-C
AEGTA11603 747 5.16 27 138.48 GST-N AEGTA10438 669 5.41 23 999.86 GST-N,GST-C
AEGTA11604 1 092 6.32 39 789.49 GST-N AEGTA11494 765 7.65 28 670.37 GST-N,GST-C
AEGTA14428 633 9.59 22 899.47 GST-N AEGTA12447 909 9.08 33 467.91 GST-N,GST-C
AEGTA15671 699 5.66 25 728.59 GST-N AEGTA12899 690 5.28 25 830.90 GST-N,GST-C
AEGTA16349 627 5.62 23 165.92 GST-N AEGTA13799 648 5.38 24 132.08 GST-N,GST-C
AEGTA16477 708 5.07 25 769.76 GST-N AEGTA14055 648 5.04 24 629.13 GST-N,GST-C
AEGTA17396 501 5.40 18 216.14 GST-N AEGTA16442 603 5.99 22 114.72 GST-N,GST-C
AEGTA19882 723 5.66 26 175.10 GST-N AEGTA17533 729 4.74 26 596.62 GST-N,GST-C
AEGTA43770 714 5.09 24 973.69 GST-N AEGTA17535 663 4.96 24 132.84 GST-N,GST-C
AEGTA43057 711 5.30 26 382.24 GST-N AEGTA15985 1 033 8.37 37 089.78 GST-N,GST-C
AEGTA42860 711 5.74 26 027.62 GST-N AEGTA43277 705 6.45 25 623.80 GST-N,GST-C
AEGTA33169 345 6.40 12 739.92 GST-N AEGTA32560 654 5.61 24 039.74 GST-N,GST-C
AEGTA32907 702 5.22 25 195.97 GST-N AEGTA32323 681 5.98 24 942.60 GST-N,GST-C
AEGTA32578 729 9.05 27 186.61 GST-N AEGTA32272 1 242 6.18 46 835.95 GST-N,GST-C
AEGTA32561 675 5.96 24 978.81 GST-N AEGTA31937 837 5.38 31 118.60 GST-N,GST-C
AEGTA32163 714 5.91 25 910.74 GST-N AEGTA31887 699 5.91 26 142.34 GST-N,GST-C
AEGTA31981 666 5.41 24 879.73 GST-N AEGTA30949 789 6.14 29 087.61 GST-N,GST-C
AEGTA31768 621 5.36 22 760.86 GST-N AEGTA30918 642 5.78 23 465.08 GST-N,GST-C
AEGTA31691 708 5.45 25 312.46 GST-N AEGTA30353 693 5.59 24 828.77 GST-N,GST-C
AEGTA31477 708 5.88 25 038.75 GST-N AEGTA30352 693 5.25 24 817.67 GST-N,GST-C
AEGTA31124 1 062 5.88 38 993.78 GST-N AEGTA30165 696 6.00 25 764.75 GST-N,GST-C
AEGTA30884 699 5.23 25 566.66 GST-N AEGTA28857 675 6.39 25 447.57 GST-N,GST-C
AEGTA30541 720 4.93 25 819.79 GST-N AEGTA28363 696 5.53 25 699.85 GST-N,GST-C
AEGTA30252 669 6.34 25 011.77 GST-N AEGTA27835 669 5.30 24 444.14 GST-N,GST-C
AEGTA29491 612 5.28 23 444.87 GST-N AEGTA27568 651 5.37 24 521.99 GST-N,GST-C
AEGTA29000 702 7.67 25 567.69 GST-N AEGTA27563 669 6.17 24 687.63 GST-N,GST-C
AEGTA28917 693 5.90 25 284.30 GST-N AEGTA27020 726 6.71 26 315.23 GST-N,GST-C
AEGTA28502 726 5.32 25 719.43 GST-N AEGTA26917 762 6.46 28 859.70 GST-N,GST-C
AEGTA28473 798 9.22 31 126.08 GST-N AEGTA26896 675 5.31 24 979.85 GST-N,GST-C
AEGTA27374 663 5.00 25 687.24 GST-N AEGTA26875 732 5.01 26 411.51 GST-N,GST-C
AEGTA27001 834 8.54 30 651.56 GST-N AEGTA26054 660 5.99 25 001.99 GST-N,GST-C
AEGTA26996 711 5.16 25 507.27 GST-N AEGTA25446 678 5.22 25 907.45 GST-N,GST-C
AEGTA26995 708 6.13 26 018.01 GST-N AEGTA21179 834 5.69 30 222.34 GST-N,GST-C
AEGTA26994 711 5.57 25 309.11 GST-N AEGTA20148 657 5.45 24 738.36 GST-N,GST-C
AEGTA26080 786 5.57 29 366.79 GST-N AEGTA18987 690 5.51 25 070.84 GST-N,GST-C
AEGTA25964 714 5.68 26 104.21 GST-N AEGTA18354 702 5.40 26 076.15 GST-N,GST-C

Fig.1

Phylogenetic tree of GST genes"

Table 3

Duplication analysis of GST genes"

基因Gene 同义突变频率Ks 非同义突变频率Ka Ka/Ks 纯化选择Purify selection 复制时间(Mya)
AEGTA30352-30353 0.1243 0.0217 0.1746 是 95
AEGTA28363-31887 0.4179 0.1055 0.2525 是 32
AEGTA20866-28917 0.6575 0.2023 0.3077 是 50
AEGTA26896-27835 0.2628 0.1189 0.4524 是 20

Fig.2

The expression pattern analysis of GST genes under abiotic stress"

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