Tiller angle, a very essential agronomic trait, is significant in rice breeding, especially in plant type breeding. A tiller anglo controlling 2 （tac2） mutant was obtained from a restorer line Jinhui 10 by ethyl met...Tiller angle, a very essential agronomic trait, is significant in rice breeding, especially in plant type breeding. A tiller anglo controlling 2 （tac2） mutant was obtained from a restorer line Jinhui 10 by ethyl methane sulphonate mutagenesis. The tac2 mutant displayed normal phenotype at the seedling stage and the tiller angle significantly increased at the tillering stage, A preliminary physiological research indicated that the mutant was sensitive to GA. Thus, it is speculated that TAC2 and TAC1 might control the tiller angle in the same way. Genetic analysis showed that the mutant trait was controlled by a major recessive gene and was located on chromosome 9 using SSR markers. The genetic distances between TAC2 and its nearest markers RM3320 and RM201 were 19.2 cM and 16,7 cM, respectively.展开更多
Although testing wastewater for public health surveillance has recently received significant attention in the United States,researchers and public health professionals have long realized the tremendous promise of envi...Although testing wastewater for public health surveillance has recently received significant attention in the United States,researchers and public health professionals have long realized the tremendous promise of environmental surveillance(ES),defined as tracking pathogens of interest in fecally contaminated surface waters,soil,or fomites,in low-resource settings for public health action.1,2 The power of ES in lowresource settings is most clearly illustrated with the over 30 years of well-established and standardized polio surveillance.As part of the Global Polio Eradication Initiative,the World Health Organization(WHO)has accredited 146 laboratories within the Global Polio Lab Network(GPLN).These facilities across 92 countries process over 8,000 wastewater or fecally contaminated surface water samples per year,in addition to over 220,000 stool samples annually.3 The data generated from the GPLN are closely linked to clear public health action related to targeted vaccination campaigns.The investment and adoption of ES for polio eradication efforts serves as a use-case for other targets of interest.To explore the current state of the field,the National Science Foundation-funded Research Coordination Network(RCN)on Wastewater Based Epidemiology for SARS-CoV-2 and Emerging Public Health Threats held a workshop in December 2023 to discuss the opportunities and challenges for ES in low-resource settings(Figure 1).Discussions during the workshop highlighted knowledge gaps,best-practices,target selection,academic/government/private partnerships and overall public health action and sustainability of these programs.展开更多
基金supported by the Doctoral Fund of Ministry of Education of China (Grant No. 20070635005)Ministry of Major Science & Technology of Chongqing, China (Grant No. CSTC2007AA1019)
文摘Tiller angle, a very essential agronomic trait, is significant in rice breeding, especially in plant type breeding. A tiller anglo controlling 2 （tac2） mutant was obtained from a restorer line Jinhui 10 by ethyl methane sulphonate mutagenesis. The tac2 mutant displayed normal phenotype at the seedling stage and the tiller angle significantly increased at the tillering stage, A preliminary physiological research indicated that the mutant was sensitive to GA. Thus, it is speculated that TAC2 and TAC1 might control the tiller angle in the same way. Genetic analysis showed that the mutant trait was controlled by a major recessive gene and was located on chromosome 9 using SSR markers. The genetic distances between TAC2 and its nearest markers RM3320 and RM201 were 19.2 cM and 16,7 cM, respectively.
基金supported by the National Science Foundation,grant 2202361.
文摘Although testing wastewater for public health surveillance has recently received significant attention in the United States,researchers and public health professionals have long realized the tremendous promise of environmental surveillance(ES),defined as tracking pathogens of interest in fecally contaminated surface waters,soil,or fomites,in low-resource settings for public health action.1,2 The power of ES in lowresource settings is most clearly illustrated with the over 30 years of well-established and standardized polio surveillance.As part of the Global Polio Eradication Initiative,the World Health Organization(WHO)has accredited 146 laboratories within the Global Polio Lab Network(GPLN).These facilities across 92 countries process over 8,000 wastewater or fecally contaminated surface water samples per year,in addition to over 220,000 stool samples annually.3 The data generated from the GPLN are closely linked to clear public health action related to targeted vaccination campaigns.The investment and adoption of ES for polio eradication efforts serves as a use-case for other targets of interest.To explore the current state of the field,the National Science Foundation-funded Research Coordination Network(RCN)on Wastewater Based Epidemiology for SARS-CoV-2 and Emerging Public Health Threats held a workshop in December 2023 to discuss the opportunities and challenges for ES in low-resource settings(Figure 1).Discussions during the workshop highlighted knowledge gaps,best-practices,target selection,academic/government/private partnerships and overall public health action and sustainability of these programs.
