Abstract:
:Plants have evolved a large number of transcription factors (TF), which are enriched among duplicate genes, highlighting their roles in complex regulatory networks. The APETALA2/EREBP-like genes constitute a large plant TF family and participate in development and stress responses. To probe the conservation and divergence of AP2/EREBP genes, we analyzed the duplication patterns of this family in Brassicaceae and identified interacting proteins of representative Arabidopsis AP2/EREBP proteins. We found that many AP2/EREBP duplicates generated early in Brassicaceae history were quickly lost, but many others were retained in all tested Brassicaceae species, suggesting early functional divergence followed by persistent conservation. In addition, the sequences of the AP2 domain and exon numbers were highly conserved in rosids. Furthermore, we used 16 A. thaliana AP2/EREBP proteins as baits in yeast screens and identified 1,970 potential AP2/EREBP-interacting proteins, with a small subset of interactions verified in planta. Many AP2 genes also exhibit reduced expression in an anther-defective mutant, providing a possible link to developmental regulation. The putative AP2-interacting proteins participate in many functions in development and stress responses, including photomorphogenesis, flower development, pathogenesis, drought and cold responses, abscisic acid and auxin signaling. Our results present the AP2/EREBP evolution patterns in Brassicaceae, and support a proposed interaction network of AP2/EREBP proteins and their putative interacting proteins for further study.
journal_name
J Integr Plant Bioljournal_title
Journal of integrative plant biologyauthors
Zeng L,Yin Y,You C,Pan Q,Xu D,Jin T,Zhang B,Ma Hdoi
10.1111/jipb.12439subject
Has Abstractpub_date
2016-06-01 00:00:00pages
549-63issue
6eissn
1672-9072issn
1744-7909journal_volume
58pub_type
杂志文章abstract::Drought stress has detrimental effects on plants. Although the abscisic acid (ABA)-mediated drought response is well established, defensive mechanisms to cope with dehydration-induced proteotoxicity have been rarely studied. DRR1 was identified as an Arabidopsis drought-induced gene encoding an ER-localized RING-type ...
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journal_title:Journal of integrative plant biology
pub_type: 杂志文章
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journal_title:Journal of integrative plant biology
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journal_title:Journal of integrative plant biology
pub_type: 杂志文章
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journal_title:Journal of integrative plant biology
pub_type: 杂志文章,评审
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journal_title:Journal of integrative plant biology
pub_type: 杂志文章
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journal_title:Journal of integrative plant biology
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journal_title:Journal of integrative plant biology
pub_type: 杂志文章
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journal_title:Journal of integrative plant biology
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journal_title:Journal of integrative plant biology
pub_type: 杂志文章
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journal_title:Journal of integrative plant biology
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abstract::Rice (Oryza sativa) is one of the most important staple food crops for more than half of the world's population. The demand is increasing for food security because of population growth and environmental challenges triggered by climate changes. This scenario has led to more interest in developing crops with greater pro...
journal_title:Journal of integrative plant biology
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