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Transcriptional profiling analysis in Populus yunnanensis provides insights into the molecular mechanisms of sexual differences in plant salinity tolerance

ABSTRACT: In the present study, we compared transcriptional response to salinity between male and female individuals of Populus yunnanensis. We found that several functional groups of genes involved in important pathways were differentially expressed, including photosynthesis-related genes which were mainly up-regulated in males but down-regulated in females. This gene expression pattern is consistent with physiological observation that salinity inhibited photosynthetic capacity more in females than in males. In conclusion, our study provided molecular evidence of sexual differences in poplar salinity tolerance. Identified sex-related genes in salinity tolerance and their functional groups will enhance our understanding of sexual differences to salinity stress at the transcription level.

ORGANISM(S): Populus yunnanensis

PROVIDER: GSE35223 | GEO | 2012/01/20

SECONDARY ACCESSION(S): PRJNA150657

REPOSITORIES: GEO

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Transcriptional profiling analysis in Populus yunnanensis provides insights into the molecular mechanisms of sexual differences in plant salinity tolerance

Project description:In the present study, we compared transcriptional response to salinity between male and female individuals of Populus yunnanensis. We found that several functional groups of genes involved in important pathways were differentially expressed, including photosynthesis-related genes which were mainly up-regulated in males but down-regulated in females. This gene expression pattern is consistent with physiological observation that salinity inhibited photosynthetic capacity more in females than in males. In conclusion, our study provided molecular evidence of sexual differences in poplar salinity tolerance. Identified sex-related genes in salinity tolerance and their functional groups will enhance our understanding of sexual differences to salinity stress at the transcription level. 4 samples examined: males without salinity stress, males exposed to salinity stress, females without salinity stress and females exposed to salinity stress. Nine plants of each sex were exposed to each treatment, and RNA samples from the 9 individuals were pooled with equal proportion.

2012-01-20 | E-GEOD-35223 | biostudies-arrayexpress

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Transcriptional profiling in dioecious plant Populus cathayana reveals potential and sex-specific molecular adaptations to solar UV-B radiation.

Project description:Recently, we found a dioecious plant Populus cathayana males possess a greater tolerance to enhanced UV-B radiation than do females. To carry this work forward, comparative transcriptome analyses were carried out. Similar to previous studies, a set of conserved functions and pathways related to UV-B stress were detected in males and females, regardless of the sex. In addition, sex-specific responses via transcriptome remodeling were also detected as shown in the changes of sex-related gene expression occurred in some pathways. For example, a lot of differentially expressed genes (DEGs) involved in amino acid metabolism were mainly up-regulated in males, but down-regulated in females. Moreover, we found some DEGs expressed predominantly or exclusively in one sex, which may directly contribute to sex-related physiological responses. 4 samples examined: (i) males exposure to decreased solar UV-B radiation (MC); (ii) females exposure to decreased solar UV-B radiation (FC); (iii) males exposure to ambient solar UV-B radiation (MU); and (iv) females exposure to ambient solar UV-B radiation (FU). Nine plants of each sex were exposed to each treatment, and RNA samples from the 9 individuals were pooled with equal proportion.

2014-01-18 | E-GEOD-54182 | biostudies-arrayexpress

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Project description:Abiotic stress is a major factor affecting the growth, development, yield and quality in plants including the important biomass yield such as in a bioenergy feedstock crops. In a first of its kind, RNA-seq based high resolution survey of abiotic stress-induced transcriptome of bioenergy feedstock model plant western poplar (Populus trichocarpa accesion Nisqually-1) was carried out by way of 81 libraries made from total RNA isolated from three tissues, mature vascular leaf, stem xylem and root sampled from plants subjected to untreated control and treated with four individual stress treatments cold, heat, drought and high salinity. For every tissue and treatment type including controls, three individual plants were used per treatment as biological replicates. This research project is supported by the DOE Office of Science, Office of Biological and Environmental Research (BER), USA, grant no. DE-SC0008570

2018-02-23 | E-MTAB-5540 | biostudies-arrayexpress

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2013-07-01 | GSE43533 | GEO

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Project description:Gene expression response of Populus plants subjected to leaf wounding was analyzed using the Affymetrix poplar genome microarrays. Keywords: Stress response

2009-12-01 | GSE16785 | GEO

Wound-induced gene expression changes in Populus: 1 week; clone RM5

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