Abstract
The transcription factor known as TALE (three-amino acid loop extension) is essential for plant growth, cell differentiation and responses to environmental stresses. Although the TALE gene family has been identified in various plants, there has been a lack of comprehensive whole-genome identification and analysis in Gramineae species. In this study, 123 TALE family genes were identified in five Gramineae species, which can be categorized into two main subgroups: KONX and BELL. Most of the TALE genes in the same subgroup displayed analogous gene structures and conserved motifs. Furthermore, whole genome duplication (WGD) significantly contributes to the expansion of the TALE gene family in Gramineae. The promoter region of TALE genes in Gramineae contains a large number of cis-elements associated with abiotic stress and hormone response. Tissue-specific expression analysis indicated that most OsTALE, ZmTALE and AtTALE genes were highly expressed in stems and leaves. Additionally, RNA-seq data revealed that OsTALE, ZmTALE and AtTALE genes were found to respond to abiotic stress treatments. Furthermore, we found that the expression levels of SbTALE11/19 were up-regulated in response to PEG and NaCl treatment, respectively. This study provides a significant reference for further research on the biological function of TALE transcription factors in Gramineae plants.
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Claims 8
Claim · model-written summary
The study identified 123 TALE genes in five grass species and classified them into KONX and BELL groups.
Verbatim
e0“123 TALE family genes were identified in five Gramineae species, which can be categorized into two main subgroups: KONX and BELL.”
Claim · model-written summary
TALE genes within a subgroup had similar gene structures and conserved motifs.
Verbatim
e0“Most of the TALE genes in the same subgroup displayed analogous gene structures and conserved motifs.”
t0“Gramineae”
Claim · model-written summary
Whole genome duplication significantly contributed to TALE gene-family expansion.
- Gene
- TALE gene familye0
- Outcome
- expansion of the TALE gene familye0
- Qualifier
- whole genome duplication (WGD)e0
Not reportedDirection
Verbatim
e0“whole genome duplication (WGD) significantly contributes to the expansion of the TALE gene family in Gramineae.”
Claim · model-written summary
TALE promoters contained many cis-elements associated with abiotic stress and hormone response.
Verbatim
e0“The promoter region of TALE genes in Gramineae contains a large number of cis-elements associated with abiotic stress and hormone response.”
Claim · model-written summary
Most OsTALE, ZmTALE and AtTALE genes were highly expressed in stems and leaves.
Verbatim
e0“most OsTALE, ZmTALE and AtTALE genes were highly expressed in stems and leaves.”
t0“Gramineae”
Claim · model-written summary
OsTALE, ZmTALE and AtTALE genes responded to abiotic stress treatments.
- Treatment
- abiotic stress treatmentse0
- Gene
- OsTALE, ZmTALE and AtTALE genese0
- Outcome
- respond to abiotic stress treatmentse0
Not reportedComparatorDirection
Verbatim
e0“OsTALE, ZmTALE and AtTALE genes were found to respond to abiotic stress treatments.”
t0“Gramineae”
Claim · model-written summary
SbTALE11 expression increased in response to PEG.
Not reportedComparator
Verbatim
e0“the expression levels of SbTALE11/19 were up-regulated in response to PEG and NaCl treatment, respectively.”
t0“Gramineae”
Claim · model-written summary
SbTALE19 expression increased in response to NaCl.
- Treatment
- NaCl treatmente0
- Gene
- SbTALE11/19e0
- Outcome
- expression levels of SbTALE11/19e0
- Direction
- up-regulatede0
Not reportedComparator
Verbatim
e0“the expression levels of SbTALE11/19 were up-regulated in response to PEG and NaCl treatment, respectively.”
t0“Gramineae”