Increasing soil salinization seriously impairs plant growth and development,resulting in crop loss.The Salt-Overly-Sensitive(SOS)pathway is indispensable to the mitigation of Na+toxicity in plants under high salinity....Increasing soil salinization seriously impairs plant growth and development,resulting in crop loss.The Salt-Overly-Sensitive(SOS)pathway is indispensable to the mitigation of Na+toxicity in plants under high salinity.However,whether natural variations of SOS2 contribute to salt tolerance has not been reported.Here a natural variation in the SlSOS2 promoter region was identified to be associated with root Na+/K+ratio and the loss of salt resistance during tomato domestication.This natural variation contains an ABI4-binding cis-element and plays an important role in the repression of SlSOS2 expression.Genetic evidence revealed that SlSOS2 mutations increase root Na+/K+ratio under salt stress conditions and thus attenuate salt resistance in tomato.Together,our findings uncovered a critical but previously unknown natural variation of SOS2 in salt resistance,which provides valuable natural resources for genetic breeding for salt resistance in cultivated tomatoes and other crops.展开更多
IEEE Serious Open Source for the Benefit of Humanity (SOSH) is hosted by the IEEE Standards Association, which gathers industry experts, innovators, and engineering leaders from around the world to explore the profoun...IEEE Serious Open Source for the Benefit of Humanity (SOSH) is hosted by the IEEE Standards Association, which gathers industry experts, innovators, and engineering leaders from around the world to explore the profound benefits of open source technology for industries and their customers.展开更多
In this paper,a statistical cluster-based simulation channel model with a finite number of sinusoids is proposed for depicting the multiple-input multiple-output(MIMO)communications in vehicleto-everything(V2X)environ...In this paper,a statistical cluster-based simulation channel model with a finite number of sinusoids is proposed for depicting the multiple-input multiple-output(MIMO)communications in vehicleto-everything(V2X)environments.In the proposed sum-of-sinusoids(SoS)channel model,the waves that emerge from the transmitter undergo line-of-sight(LoS)and non-line-of-sight(NLoS)propagation to the receiver,which makes the model suitable for describing numerous V2X wireless communication scenarios for sixth-generation(6G).We derive expressions for the real and imaginary parts of the complex channel impulse response(CIR),which characterize the physical propagation characteristics of V2X wireless channels.The statistical properties of the real and imaginary parts of the complex CIRs,i.e.,autocorrelation functions(ACFs),Doppler power spectral densities(PSDs),cross-correlation functions(CCFs),and variances of ACFs and CCFs,are derived and discussed.Simulation results are generated and match those predicted by the underlying theory,demonstrating the accuracy of our derivation and analysis.The proposed framework and underlying theory arise as an efficient tool to investigate the statistical properties of 6G MIMO V2X communication systems.展开更多
基金This work was supported by the National Natural Science Foun-dation of China(grant 32000206 to Z.W.)the Natural Science Foundation of Anhui Province(grant 2208085Y08 to Z.W.).
文摘Increasing soil salinization seriously impairs plant growth and development,resulting in crop loss.The Salt-Overly-Sensitive(SOS)pathway is indispensable to the mitigation of Na+toxicity in plants under high salinity.However,whether natural variations of SOS2 contribute to salt tolerance has not been reported.Here a natural variation in the SlSOS2 promoter region was identified to be associated with root Na+/K+ratio and the loss of salt resistance during tomato domestication.This natural variation contains an ABI4-binding cis-element and plays an important role in the repression of SlSOS2 expression.Genetic evidence revealed that SlSOS2 mutations increase root Na+/K+ratio under salt stress conditions and thus attenuate salt resistance in tomato.Together,our findings uncovered a critical but previously unknown natural variation of SOS2 in salt resistance,which provides valuable natural resources for genetic breeding for salt resistance in cultivated tomatoes and other crops.
文摘IEEE Serious Open Source for the Benefit of Humanity (SOSH) is hosted by the IEEE Standards Association, which gathers industry experts, innovators, and engineering leaders from around the world to explore the profound benefits of open source technology for industries and their customers.
基金supported by National Natural Science Foundation of China(NSFC)(No.62101274 and 62101275)Natural Science Foundation of Jiangsu Province(BK20210640)Open Research Fund of National Mobile Communications Research Laboratory Southeast University under Grant 2021D03。
文摘In this paper,a statistical cluster-based simulation channel model with a finite number of sinusoids is proposed for depicting the multiple-input multiple-output(MIMO)communications in vehicleto-everything(V2X)environments.In the proposed sum-of-sinusoids(SoS)channel model,the waves that emerge from the transmitter undergo line-of-sight(LoS)and non-line-of-sight(NLoS)propagation to the receiver,which makes the model suitable for describing numerous V2X wireless communication scenarios for sixth-generation(6G).We derive expressions for the real and imaginary parts of the complex channel impulse response(CIR),which characterize the physical propagation characteristics of V2X wireless channels.The statistical properties of the real and imaginary parts of the complex CIRs,i.e.,autocorrelation functions(ACFs),Doppler power spectral densities(PSDs),cross-correlation functions(CCFs),and variances of ACFs and CCFs,are derived and discussed.Simulation results are generated and match those predicted by the underlying theory,demonstrating the accuracy of our derivation and analysis.The proposed framework and underlying theory arise as an efficient tool to investigate the statistical properties of 6G MIMO V2X communication systems.
