Enhancing the nutritional quality of food crops is a way to improve human nutrition and health. Grain protein content （ GPC ） is an important nutritional quality trait for rice and many other crops. Therefore, it wi...Enhancing the nutritional quality of food crops is a way to improve human nutrition and health. Grain protein content （ GPC ） is an important nutritional quality trait for rice and many other crops. Therefore, it will be very significant to increase GPC and improve rice quality. This paper mainly reviewed the genetic studies GPC in rice, mapping and cloning of QTLs and genes associated with GPC. However, little is known about the molecular mechanism and gene function related to GPC in rice. Thus, here we put forward the genetic strategy by gene pyramiding or molecular marker assisted selection to improve GPC and nutritional quality in rice. This review could provide important information for genetic improvement of grain nutritional quality of rice.展开更多
This study presents two kinds of rolling robots that are able to roll by deforming their outer shapes with a single degree of freedom.Each robot is an essential multi-loop planar expandable linkage constructed by a co...This study presents two kinds of rolling robots that are able to roll by deforming their outer shapes with a single degree of freedom.Each robot is an essential multi-loop planar expandable linkage constructed by a concave outer loop and several inner parallelogram loops.In this study,the mechanical design of the robots is introduced.Dynamic rolling process is further analyzed on the basis of zero moment point method,and a morphing strategy is proposed to guarantee a stable dynamic rolling process.A novel passive rolling locomotion is also developed,which enables the robots to roll and stand on a slope.To verify the design,two prototypes are manufactured,wherein the dynamic and passive rolling locomotion are carried out.展开更多
基金Supported by National Natural Science Foundation of China(U1604110,U1404319,31270727,31600992)Key Project of Science and Technology in Henan Province(152102110100,152102110036)+5 种基金Nanhu Scholars Program for Young Scholars of XYNU(2016054)Major Science and Technology Project in Henan Province(121100110200)Science and Technology Innovation Team in Henan Province(14IRTSTHN012)Key Research Projects of Henan Higher Education Institutions(15A180059)Students Innovation and Training Program of XYNU(201710477032)Institute for Conservation and Utilization of Agrobioresources in Dabie Mountains(2016020)
文摘Enhancing the nutritional quality of food crops is a way to improve human nutrition and health. Grain protein content （ GPC ） is an important nutritional quality trait for rice and many other crops. Therefore, it will be very significant to increase GPC and improve rice quality. This paper mainly reviewed the genetic studies GPC in rice, mapping and cloning of QTLs and genes associated with GPC. However, little is known about the molecular mechanism and gene function related to GPC in rice. Thus, here we put forward the genetic strategy by gene pyramiding or molecular marker assisted selection to improve GPC and nutritional quality in rice. This review could provide important information for genetic improvement of grain nutritional quality of rice.
基金Supported by the Fundamental Research Funds for the Central Universities(Grant No.2019JBZ109).
文摘This study presents two kinds of rolling robots that are able to roll by deforming their outer shapes with a single degree of freedom.Each robot is an essential multi-loop planar expandable linkage constructed by a concave outer loop and several inner parallelogram loops.In this study,the mechanical design of the robots is introduced.Dynamic rolling process is further analyzed on the basis of zero moment point method,and a morphing strategy is proposed to guarantee a stable dynamic rolling process.A novel passive rolling locomotion is also developed,which enables the robots to roll and stand on a slope.To verify the design,two prototypes are manufactured,wherein the dynamic and passive rolling locomotion are carried out.
