The structural characteristics and the substrate recognition properties of RNase ZS1

Peng, Guoqing; He, Ying; Wang, Mumei; Ashraf, Muhammad Furqan; Liu, Zhenlan; Zhuang, Chuxiong; Zhou, Hai

doi:10.1016/j.plaphy.2020.12.001

Cited by 7 publications

(5 citation statements)

References 25 publications

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“…Intersubspecific hybrid rice has the potential to increase the yield by 30% compared to intervarietal hybrid rice [ 1 ]. The direct utilization of heterosis between indica and japonica rice has been achieved by using a widely compatible gene [ 3 , 6 ] and the sterile lines for two-line hybrid rice production [ 31 , 79 , 80 , 81 ]. However, the yield of indica – japonica hybrid combinations in hybrid seed production is generally low.…”

Section: Discussion and Prospectsmentioning

confidence: 99%

Advances on the Study of Diurnal Flower-Opening Times of Rice

Wang

Chen

Huang

et al. 2023

IJMS

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The principal goal of rice (Oryza sativa L.) breeding is to increase the yield. In the past, hybrid rice was mainly indica intra-subspecies hybrids, but its yield has been difficult to improve. The hybridization between the indica and japonica subspecies has stronger heterosis; the utilization of inter-subspecies heterosis is important for long-term improvement of rice yields. However, the different diurnal flower-opening times (DFOTs) between the indica and japonica subspecies seriously reduce the efficiency of cross-pollination and yield and increase the cost of indica–japonica hybrid rice seeds, which has become one of the main constraints for the development of indica–japonica hybrid rice breeding. The DFOT of plants is adapted to their growing environment and is also closely related to species stability and evolution. Herein, we review the structure and physiological basis of rice flower opening, the factors that affect DFOT, and the progress of cloning and characterization of DFOT genes in rice. We also analyze the problems in the study of DFOT and provide corresponding suggestions.

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Section: Discussion and Prospectsmentioning

confidence: 99%

Advances on the Study of Diurnal Flower-Opening Times of Rice

Wang

Chen

Huang

et al. 2023

IJMS

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“…In contrast, after the early formation of microspores, all the outer walls of microspores were abnormal, and it was difficult to distinguish between the boundary of surface layer and inner layer, which resulted in the failure of inner wall formation, and yielded typical abortive pollens in neo-tetraploid rice. UbL40 gene is induced by high temperature during the regulation mode of TMS5 gene function and specifically expressed in pollen mother cells [ 33 , 41 , 42 ].…”

Section: Discussionmentioning

confidence: 99%

Thermo-Sensitive Genic Male Sterile Lines of Neo-Tetraploid Rice Developed through Gene Editing Technology Revealed High Levels of Hybrid Vigor

Chen

Shahid

et al. 2022

Plants

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Neo-tetraploid rice, which developed from the progenies of autotetraploid hybrid by our research group, is a useful germplasm with high fertility and strong heterosis when they crossed with other autotetraploid rice lines. The CRISPR/Cas9-mediated TMS5 gene editing system has been widely used in diploid rice, but there are few reports in tetraploid rice. Here, we used CRISPR/Cas9 technology to edit the TMS5 gene, which is a temperature sensitive gene controlling the fertility in diploid rice, in neo-tetraploid rice to develop male sterile lines. Two mutant lines, H2s and H3s, were developed from the gene editing and displayed characteristics of thermo-sensitive genic male sterility. The daily mean temperatures of 23 °C to 26 °C were found to be critical for sterility (restrictive temperature) in H2s and H3s under both controlled (growth chambers) and natural growing conditions (field). Cytological observation showed the anther dysplasia appeared later in H2s and H3s than that of the TMS5 mutant of diploid rice (E285s) under the same conditions. Then these mutant lines, H2s and H3s, were crossed with tetraploid rice to generate F1 hybrids, which exhibited obvious advantages for effective number of panicles, total grains and seed setting. The high levels of hybrids heterosis were maintained for several generations that can save seed cost. Our research provides an effective way of developing thermo-sensitive genic male sterility (TGMS) lines of tetraploid rice using gene editing, which will accelerate the utilization of polyploid heterosis.

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“…TMS5 encodes an RNase Z S1 that directly and specifically cleaves ubiquitin‐ribosomal L40 family ( Ub L40 ) mRNAs (H. Zhou et al, 2014) (Figure 5c). The activity of RNase Z S1 depends on the cloverleaf structure of Ub L40 mRNA (G. Peng et al, 2021). The excessive accumulation of Ub L40 mRNAs induced by high temperature causes male sterility.…”

Section: Molecular Mechanism Regulating Thermosensitive Genic Male St...mentioning

confidence: 99%

“…(Figure5c). The activity of RNase Z S1 depends on the cloverleaf structure of Ub L40 mRNA (G Peng et al, 2021)…”

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Environment‐sensitive genic male sterility in rice and other plants

Peng

Liu

Zhuang

et al. 2022

Plant Cell & Environment

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Environment‐sensitive genic male sterility is a type of male sterility that is affected by both genetic and environmental factors. Environment‐sensitive genic male sterile lines are not only used in two‐line hybrid breeding but are also good materials for studying plant−environment interactions. In this study we review the research progress on environment‐sensitive genic male sterility in rice from the perspectives of epigenetic, transcriptional, posttranscriptional, posttranslational and metabolic mechanisms as well as signal transduction processes. While significant progress has been made in the genetics, gene cloning and understanding of the molecular mechanisms of environment‐sensitive genic male sterility in recent years, the relevant regulatory network is still poorly understood in rice. We therefore also review studies of environment‐sensitive genic male sterility in Arabidopsis and other crops, hoping to promote research in this field in rice. Finally, we analyse the challenges posed by environment‐sensitive genic male sterility and provide corresponding suggestions. This review will contribute towards an understanding the molecular genetics of environment‐sensitive genic male sterility and its application in two‐line hybrid breeding in rice and other species.

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The structural characteristics and the substrate recognition properties of RNase ZS1

Cited by 7 publications

References 25 publications

Advances on the Study of Diurnal Flower-Opening Times of Rice

Advances on the Study of Diurnal Flower-Opening Times of Rice

Thermo-Sensitive Genic Male Sterile Lines of Neo-Tetraploid Rice Developed through Gene Editing Technology Revealed High Levels of Hybrid Vigor

Environment‐sensitive genic male sterility in rice and other plants

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