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| Title |
Expansion and stress responses of the AP2/EREBP superfamily in cotton
|
|---|---|
| Published in |
BMC Genomics, January 2017
|
| DOI | 10.1186/s12864-017-3517-9 |
| Pubmed ID | |
| Authors |
Chunxiao Liu, Tianzhen Zhang |
| Abstract |
The allotetraploid cotton originated from one hybridization event between an extant progenitor of Gosssypium herbaceum (A1) or G. arboreum (A2) and another progenitor, G. raimondii Ulbrich (D5) 1-1.5 million years ago (Mya). The APETALA2/ethylene-responsive element binding protein (AP2/EREBP) transcription factors constitute one of the largest and most conserved gene families in plants. They are characterized by their AP2 domain, which comprises 60-70 amino acids, and are classified into four main subfamilies: the APETALA2 (AP2), Related to ABI3/VP1 (RAV), Dehydration-Responsive Element Binding protein (DREB) and Ethylene-Responsive Factor (ERF) subfamilies. The AP2/EREBP genes play crucial roles in plant growth, development and biotic and abiotic stress responses. Hence, understanding the molecular characteristics of cotton stress tolerance and gene family expansion would undoubtedly facilitate cotton resistance breeding and evolution research. A total of 269 AP2/EREBP genes were identified in the G. raimondii (D5) cotton genome. The protein domain architecture and intron/exon structure are simple and relatively conserved within each subfamily. They are distributed throughout all chromosomes but are clustered on various chromosomes due to genomic tandem duplication. We identified 73 tandem duplicated genes and 221 segmental duplicated gene pairs which contributed to the expansion of AP2/EREBP superfamily. Of them, tandem duplication was the most important force of the expansion of the B3 group. Transcriptome analysis showed that 504 AP2/EREBP genes were expressed in at least one tested G. hirsutum TM-1 tissues. In G. hirsutum, 151 non-repeated genes of the DREB and ERF subfamily genes were responsive to different stresses: 132 genes were induced by cold, 63 genes by drought and 94 genes by heat. qRT-PCR confirmed that 13 GhDREB and 15 GhERF genes were induced by cold and/or drought. No transcripts detected for 53 of the 111 tandem duplicated genes in TM-1. In addition, some homoeologous genes showed biased expression toward either A-or D-subgenome. The AP2/EREBP genes were obviously expanded in Gossypium. The GhDREB and GhERF genes play crucial roles in cotton stress responses. Our genome-wide analysis of AP2/EREBP genes in cotton provides valuable information for characterizing the molecular functions of AP2/EREBP genes and reveals insights into their evolution in polyploid plants. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 81 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 81 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 19 | 23% |
| Student > Bachelor | 8 | 10% |
| Researcher | 7 | 9% |
| Student > Master | 7 | 9% |
| Student > Doctoral Student | 6 | 7% |
| Other | 9 | 11% |
| Unknown | 25 | 31% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 32 | 40% |
| Biochemistry, Genetics and Molecular Biology | 18 | 22% |
| Environmental Science | 1 | 1% |
| Immunology and Microbiology | 1 | 1% |
| Economics, Econometrics and Finance | 1 | 1% |
| Other | 2 | 2% |
| Unknown | 26 | 32% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 02 February 2017.
All research outputs
#14,917,504
of 22,950,943 outputs
Outputs from BMC Genomics
#6,158
of 10,681 outputs
Outputs of similar age
#242,774
of 420,210 outputs
Outputs of similar age from BMC Genomics
#124
of 223 outputs
Altmetric has tracked 22,950,943 research outputs across all sources so far. This one is in the 32nd percentile – i.e., 32% of other outputs scored the same or lower than it.
So far Altmetric has tracked 10,681 research outputs from this source. They receive a mean Attention Score of 4.7. This one is in the 37th percentile – i.e., 37% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 420,210 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 39th percentile – i.e., 39% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 223 others from the same source and published within six weeks on either side of this one. This one is in the 40th percentile – i.e., 40% of its contemporaries scored the same or lower than it.