Claim · model-written summary
The GhDAN1-silenced phenotype resembles the drought-tolerant phenotype of the A-diploid cotton ancestor species, which has undetectable DAN1 expression.
Verbatim
e5“This phenotype resembles the drought-tolerant phenotype of the A-diploid cotton ancestor species, which has an undetectable expression of DAN1”
Title
Xiaoyuan Tao; Menglin Li; Ting Zhao; et al. PLANT PHYSIOLOGY 2021. doi:10.1093/plphys/kiab179
Other claims from this paper (7)
- Observation DAN1 is a drought-responsive lincRNA in allotetraploid upland cotton.
- Observation DAN1 is predominantly expressed in the nucleoplasm of upland cotton.
- Observation The DAN1 lincRNA arose from the cotton progenitor A-diploid genome after hybridization and WGD events.
- Observation GhDAN1 RNA can bind with DNA fragments containing AAAG motifs, similar to DNA binding with one zinc finger transcription factor binding sequences.
- Association Suppression of GhDAN1 mainly regulates genes with AAAG motifs in auxin-response pathways.
- Intervention effect GhDAN1-silenced plants exhibit improved tolerance to drought stress.
- Mechanism Genomic shock of interspecific hybridization and WGD is suggested to have stimulated neofunctionalization of non-coding genes in cotton.