Abstract
The DMP (DOMAIN OF UNKNOWN FUNCTION 679 membrane protein) domain, containing a family of membrane proteins specific to green plants, is involved in numerous biological functions including physiological processes, reproductive development and senescence in Arabidopsis, but their evolutionary relationship and biological function in most crops remains unknown. In this study, we scrutinized phylogenetic relationships, gene structure, conserved domains and motifs, promoter regions, gene loss/duplication events and expression patterns. Overall, 240 DMPs were identified and analyzed in 24 plant species selected from lower plants to angiosperms. Comprehensive evolutionary analysis revealed that these DMPs underwent purifying selection and could be divided into five groups (I–V). DMP gene structure showed that it may have undergone an intron loss event during evolution. The five DMP groups had the same domains, which were distinct from each other in terms of the number of DMPs; group III was the largest, closely followed by group V. The DMP promotor region with various cis-regulatory elements was predicted to have a potential role in development, hormone induction and abiotic stresses. Based on transcriptomic data, expression profiling revealed that DMPs were primarily expressed in reproductive organs and were moderately expressed in other tissues. Evolutionary analysis suggested that gene loss events occurred more frequently than gene duplication events among all groups. Overall, this genome-wide study elucidates the potential function of the DMP gene family in selected plant species, but further research is needed in many crops to validate their biological roles.
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Claims 10
Claim · model-written summary
The study identified 240 DMPs in 24 plant species.
Verbatim
e0“240 DMPs were identified and analyzed in 24 plant species”
Claim · model-written summary
DMPs showed evidence of purifying selection.
- Taxon
- PlantsViridiplantaet0
- Gene
- DMPse0
- Outcome
- underwent purifying selectione0
Verbatim
t0“in Plants”
e0“these DMPs underwent purifying selection”
Claim · model-written summary
DMPs were divided into five groups.
- Taxon
- PlantsViridiplantaet0
- Outcome
- five groups (I–V)e0
- Value
- five groupse0
Verbatim
t0“in Plants”
e0“could be divided into five groups (I–V)”
Claim · model-written summary
DMP gene structure suggested an intron loss event during evolution.
- Taxon
- PlantsViridiplantaet0
- Gene
- DMPe0
- Outcome
- intron loss evente0
- Qualifier
- may havee0
Verbatim
t0“in Plants”
e0“DMP gene structure showed that it may have undergone an intron loss event during evolution.”
Claim · model-written summary
The five DMP groups shared the same domains.
- Taxon
- PlantsViridiplantaet0
- Gene
- DMPe0
- Outcome
- same domainse0
Verbatim
t0“in Plants”
e0“The five DMP groups had the same domains”
Claim · model-written summary
Group III had the most DMPs, followed closely by group V.
- Taxon
- PlantsViridiplantaet0
- Outcome
- group III was the largest, closely followed by group Ve0
Verbatim
t0“in Plants”
e0“group III was the largest, closely followed by group V”
Claim · model-written summary
Predicted DMP promoter cis-regulatory elements suggested potential roles in development, hormone induction, and abiotic stresses.
- Taxon
- PlantsViridiplantaet0
- Gene
- DMPe0
- Outcome
- potential role in development, hormone induction and abiotic stressese0
- Qualifier
- was predictede0
Verbatim
t0“in Plants”
e0“The DMP promotor region with various cis-regulatory elements was predicted to have a potential role in development, hormone induction and abiotic stresses.”
Claim · model-written summary
DMPs were primarily expressed in reproductive organs.
- Taxon
- PlantsViridiplantaet0
- Organ / stage
- reproductive organse0
- Gene
- DMPse0
- Outcome
- primarily expressede0
Verbatim
t0“in Plants”
e0“DMPs were primarily expressed in reproductive organs”
Claim · model-written summary
DMPs were moderately expressed in other tissues.
- Taxon
- PlantsViridiplantaet0
- Organ / stage
- other tissuese0
- Outcome
- moderately expressed in other tissuese0
Verbatim
t0“in Plants”
e0“were moderately expressed in other tissues”
Claim · model-written summary
Gene loss events were inferred to be more frequent than duplication events among DMP groups.
- Taxon
- PlantsViridiplantaet0
- Outcome
- gene loss events occurred more frequently than gene duplication eventse0
Verbatim
t0“in Plants”
e0“gene loss events occurred more frequently than gene duplication events among all groups”