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Genome-wide identification and interactome analysis of members of two-component system in Banana

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Title Genome-wide identification and interactome analysis of members of two-component system in Banana
 
Creator Dhar, Yogeshwar V.
Lakhwani, Deepika
Pandey, Ashutosh
Singh, Shikha
Trivedi, Prabodh K.
Asif, Mehar H.
 
Subject Banana
Ethylene
Fruit ripening
Signal transduction
Two-component system
 
Description Accepted date: 20 August 2019
BACKGROUND:
Ethylene signal transduction in plants is conducted by the two-component system (TCS) which consists of histidine kinase (HK), histidine phosphotransferase (HPT) and response regulators (RRs). This system plays an important role in signal transduction during various cellular processes, including fruit ripening and response to multiple environmental cues. Though members of TCS have been identified in a few plants, no detailed analysis has been carried out in banana.

RESULTS:
Through genome-wide analysis, we identified a total of 80 (25 HK, 10 HPT and 45 RR) and 72 (25 HK, 5 HPT and 42 RR) TCS genes in Musa acuminata and Musa balbisiana respectively. The analysis of identified genes revealed that most of the genes are highly conserved however; there are subtle divergences among various members. Comparative expression analysis revealed an involvement of a set of TCS members during banana fruit ripening. Co-expression network analysis identified a working TCS module with direct interactions of HK-HPT and RR members. The molecular dynamics analysis of TCS module showed a significant change in structural trajectories of TCS proteins in the presence of ethylene. Analysis suggests possible interactions between the HK-HPTs and RRs as well as other members leading to banana fruit ripening.

CONCLUSIONS:
In this study, we identified and compared the members of TCS gene family in two banana species and showed their diversity, within groups on the basis of whole-genome duplication events. Our analysis showed that during banana fruit ripening TCS module plays a crucial role. We also demonstrated a possible interaction mechanism of TCS proteins in the presence and absence of ethylene by molecular dynamics simulations. These findings will help in understanding the functional mechanism of TCS proteins in plants in different conditions.
Council of Scientific and Industrial Research, New Delhi as Network project
(BSC-107).
Department of Biotechnology, New Delhi under NER-Banana Programme
 
Date 2019-08-30T10:51:55Z
2019-08-30T10:51:55Z
2019
 
Type Article
 
Identifier BMC Genomics, 20(1): 674
1471-2164
http://223.31.159.10:8080/jspui/handle/123456789/973
https://bmcgenomics.biomedcentral.com/articles/10.1186/s12864-019-6050-1
https://doi.org/10.1186/s12864-019-6050-1
 
Language en_US
 
Format application/pdf
 
Publisher BioMed Central Ltd