Fine mapping of the novel male-sterile mutant gene ms39 in maize originated from outer space flight

Zhu, Yonghui; Shi, Ziwen; Li, Shizhao; Liu, Heyang; Liu, Fuxia; Niu, Qunkai; Li, Chuan; Wang, Jing; Tang, Rong; Yi, Hongyang; Cao, Mengji

doi:10.1007/s11032-018-0878-y

Cited by 12 publications

(5 citation statements)

References 35 publications

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“…Microgravity is an important environmental factor of outer space that can induce phenotypic and even genetic changes in organisms and numerous mutants have been obtained ( Shi et al, 2014 ; Zhu et al, 2018 ). There are also concerns about the long term safety and capacity of humans to live and work in microgravity, particularly given the long-duration of space missions ( Williams and Turnock, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Changes in Vibrio natriegens Growth Under Simulated Microgravity

Yin¹,

Jin³

et al. 2020

Front. Microbiol.

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The growth rate of bacteria increases under simulated microgravity (SMG) with lowshear force. The next-generation microbial chassis Vibrio natriegens (V. natriegens) is a fast-growing Gram-negative, non-pathogenic bacterium with a generation time of less than 10 min. Screening of a V. natriegens strain with faster growth rate was attempted by 2-week continuous long-term culturing under SMG. However, the rapid growth rate of this strain made it difficult to obtain the desired mutant strain with even more rapid growth. Thus, a mutant with slower growth rate emerged. Multi-omics integration analysis was conducted to explore why this mutant grew more slowly, which might inform us about the molecular mechanisms of rapid growth of V. natriegens instead. The transcriptome data revealed that whereas genes related to mechanical signal transduction and flagellin biogenesis were up-regulated, those involved in adaptive responses, anaerobic and nitrogen metabolism, chromosome segregation and cell vitality were down-regulated. Moreover, genome-wide chromosome conformation capture (Hi-C) results of the slower growth mutant and wide type indicated that SMG-induced great changes of genome 3D organization were highly correlated with differentially expressed genes (DEGs). Meanwhile, whole genome re-sequencing found a significant number of structure variations (SVs) were enriched in regions with lower interaction frequency and down-regulated genes in the slower growth mutant compared with wild type (WT), which might represent a prophage region. Additionally, there was also a decreased interaction frequency in regions associated with well-orchestrated chromosomes replication. These results suggested that SMG might regulate local gene expression by sensing stress changes through conformation changes in the genome region of genes involved in flagellin, adaptability and chromosome segregation, thus followed by alteration of some physiological characteristics and affecting the growth rate and metabolic capacity.

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Section: Introductionmentioning

confidence: 99%

Changes in Vibrio natriegens Growth Under Simulated Microgravity

Yin¹,

Jin³

et al. 2020

Front. Microbiol.

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“…These 11 genes included three GSL genes (GSL1 (FC = 2.32), GSL8 (FC = 2.49) and GSL10 (FC = 2.62)) encoding callose synthases. Callose synthase has been reported to play a key role in pollen development in Arabidopsis thaliana [ 76 ]. We also identified two RGL genes (RGL2 (FC = 2.77) and RGL1 (FC = 3.47)) encoding the DELLA protein.…”

Section: Discussionmentioning

confidence: 99%

Oak stands along an elevation gradient have different molecular strategies for regulating bud phenology

et al. 2023

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Background Global warming raises serious concerns about the persistence of species and populations locally adapted to their environment, simply because of the shift it produces in their adaptive landscape. For instance, the phenological cycle of tree species may be strongly affected by higher winter temperatures and late frost in spring. Given the variety of ecosystem services they provide, the question of forest tree adaptation has received increasing attention in the scientific community and catalyzed research efforts in ecology, evolutionary biology and functional genomics to study their adaptive capacity to respond to such perturbations. Results In the present study, we used an elevation gradient in the Pyrenees Mountains to explore the gene expression network underlying dormancy regulation in natural populations of sessile oak stands sampled along an elevation cline and potentially adapted to different climatic conditions mainly driven by temperature. By performing analyses of gene expression in terminal buds we identified genes displaying significant dormancy, elevation or dormancy-by-elevation interaction effects. Our Results highlighted that low- and high-altitude populations have evolved different molecular strategies for minimizing late frost damage and maximizing the growth period, thereby increasing potentially their respective fitness in these contrasting environmental conditions. More particularly, population from high elevation overexpressed genes involved in the inhibition of cell elongation and delaying flowering time while genes involved in cell division and flowering, enabling buds to flush earlier were identified in population from low elevation. Conclusion Our study made it possible to identify key dormancy-by-elevation responsive genes revealing that the stands analyzed in this study have evolved distinct molecular strategies to adapt their bud phenology in response to temperature.

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“…Among them we identified three GSL genes (GSL1 (FC=2.32), GSL8 (FC=2.49) and GSL10 (FC=2.62)) encoding callose synthase. In Arabidopsis thaliana , callose synthase has been reported to play a key role during pollen development (Zhu et al ., 2018). We also identified one RGL genes (RGL2 (FC=2.77) and RGL1 (FC=3.47) encoding DELLA protein.…”

Section: Discussionmentioning

confidence: 99%

Locally adapted oak populations along an elevation gradient display different molecular strategies to regulate bud phenology

Provost

Lalanne

Lesur

et al. 2021

Preprint

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Research conducted: With the ongoing global warming, there are serious concerns about the persistence of locally adapted populations. Indeed, with the raising of temperature, the phenological cycle of tree species may be strongly affected since higher winter temperatures may have a negative impact on endodormancy release if chilling requirements are not fulfilled during winter and late frost in spring may expose trees if buds flush too early. Thus, Environmental gradients (showing continuous variations of environmental conditions) constitute a design of choice to analyze the effect of winter dormancy in locally adapted population. Methods: In the present study, we used an elevation gradient in the Pyrenees to explore the gene expression network involved in dormancy regulation in natural populations of sessile oak locally adapted to temperature. Terminal buds were harvested during dormancy induction and release at different elevations. Then, gene expression was quantified using RNAseq and we used a likelihood ratio test to identify genes displaying significant dormancy, elevation or dormancy-by-elevation interaction effects. Key results: Our results highlight molecular processes in locally adapted populations along this elevation cline, and made it possible to identify key dormancy-by-elevation responsive genes revealing that locally adapted populations have evolved distinct molecular strategies to adapt their bud phenology in response to environmental variation (i.e. temperature).

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Fine mapping of the novel male-sterile mutant gene ms39 in maize originated from outer space flight

Cited by 12 publications

References 35 publications

Changes in Vibrio natriegens Growth Under Simulated Microgravity

Changes in Vibrio natriegens Growth Under Simulated Microgravity

Oak stands along an elevation gradient have different molecular strategies for regulating bud phenology

Locally adapted oak populations along an elevation gradient display different molecular strategies to regulate bud phenology

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