The Scientific World Journal

Review Article

Drought Tolerance in Modern and Wild Wheat

Table 3

List of genes confirmed to function in drought by transgenic studies in last three years.


Type of transgenic study	Source of the gene	Gene	Function	Related mechanism/stress	Reference

Overexpression in A. thaliana	From T. Aestivum	WRKY2, WRKY19	Transcription factor: WRKY type TF	Drought	[39]
Overexpression in A. thaliana	From T. Aestivum	MYB33	transcription factor: R2R3 type MYB TF	Drought	[38]
Overexpression in N. tabacum	From T. Aestivum	PIMP1	Transcription factor: R2R3 type MYB TF	Drought	[34]
Overexpression in N. tabacum	From T. Aestivum	NAC (NAM/ATAF /CUC)	Transcription factor: plant-specific NAC (NAM/ATAF/CUC) TF	Drought	[37]
Overexpression in A. thaliana	From T. Aestivum	ABC1	Kinase: protein kinase ABC1 (activity of bc(1) complex)	Drought	[40]
Overexpression in A. thaliana	From T. Aestivum	SnRK2.4	Kinase: SNF1-type serine/threonine protein kinase	Drought	[41]
Overexpression in A. thaliana	From T. Aestivum	SnRK2.7	Kinase: SNF1-type serine/threonine protein kinase	Drought	[42]
Overexpression in A. thaliana	From T. Aestivum	CP	Protein degradation: cysteine protease	Drought	[45]
Overexpression in A. thaliana	From T. Aestivum	CHP	CHP rich zinc finger protein with unknown function	ABA-dependent and -independent pathways	[44]
Overexpression in N. tabacum	From T. Aestivum	EXPR23	Cell wall expansion: expansin	Water retention ability and osmotic potential	[46]
Overexpression in A. thaliana	From T. Aestivum	TaSIP	Salt induced protein with unknown function	Drought and salinity	[61]
Overexpression in N. tabacum	From T. Durum	PIP1;1, PIP1;2	Protective protein: aquaporin	Drought	[48]
Overexpression in T. aestivum	From H. Vulgare	HVAI	Protective protein: LEA	Drought	[62]
Transgenic ubiquitin: TaCHP	—	CHP	CHP rich zinc finger protein with unknown function	ABA-dependent and -independent pathways	[44]
TaABA08′OF1 deletion line	—	ABA08	ABA catabolism: ABA 8′-hydroxylase	Drought	[63]
VIGS silencing in T. dicoccoides	—	ATG8	Autophagy: autophagy related gene 8	Drought	[33]
VIGS silencing in T. aestivum	—	Era1, Sal1	Enhanced response to ABA, inositol polyphosphate 1-phosphatase	Drought	[49]

ABA: abscisic acid; CHP: cysteine histidine proline; SNF: sucrose nonfermenting; PIMP: pathogen induced membrane protein; CP: cysteine protease; EXPR: expansin; PIP: plasma membrane intrinsic proteins; LEA: late embryogenesis abundant; HVA: Hordeum vulgare aleurone; TaSIP: Triticum aestivum salt induced protein; VIGS: virus induced gene silencing.