In a wheat breeding line XQ-0508 showing consistent resistance to powdery mildew disease,a recessive gene,designated PmXQ-0508,was identified and mapped to a distal region on chromosome arm 2BS.Of three resistance-ass...In a wheat breeding line XQ-0508 showing consistent resistance to powdery mildew disease,a recessive gene,designated PmXQ-0508,was identified and mapped to a distal region on chromosome arm 2BS.Of three resistance-associated genes in this region,one encoding a protein kinase was selected as the primary candidate for PmXQ-0508.Ten closely linked DNA markers developed in the study could be used for marker-assisted selection for powdery-mildew resistance in breeding programs.展开更多
Superspreaders are critical infectious resources in multiple infectious diseases.They can be asymptomatic or present mild symptoms but can transmit pathogens to susceptible populations,leading to severe symptoms,and e...Superspreaders are critical infectious resources in multiple infectious diseases.They can be asymptomatic or present mild symptoms but can transmit pathogens to susceptible populations,leading to severe symptoms,and even death.Early identification of this population is extremely important to inhibit the spread of infectious diseases.Right now,the whole global world is suffering from a devastating infectious disease caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).In this article,a superspreader cluster event in coronavirus disease 2019(COVID-19)was identified by tracking contacting histories of infected patients.This cluster was found to be originated from an asymptomatic SARS-CoV-2 carrier,which resulted in 13 secondary cases getting infected.All the secondary patients presented with non-typical symptoms of COVID-19,such as fever,dry cough,and myalgia,one of which died of respiratory failure at the end.From this cluster,we learn that people with older ages,low immunity,multiple underlying diseases,especially pulmonary diseases,can contribute to a poor prognosis.Thus,asymptomatic superspreaders of COVID-19 can be extremely dangerous and must be handled time-efficiently.展开更多
基金supported by the National Natural Science Foundation of China(32072053,32301800,and 32301923)Wheat Industry Technology System of Shandong Province(SDAIT-01-01)the Key R&D Plan of Shandong Province(2022LZG002-4).
文摘In a wheat breeding line XQ-0508 showing consistent resistance to powdery mildew disease,a recessive gene,designated PmXQ-0508,was identified and mapped to a distal region on chromosome arm 2BS.Of three resistance-associated genes in this region,one encoding a protein kinase was selected as the primary candidate for PmXQ-0508.Ten closely linked DNA markers developed in the study could be used for marker-assisted selection for powdery-mildew resistance in breeding programs.
文摘Superspreaders are critical infectious resources in multiple infectious diseases.They can be asymptomatic or present mild symptoms but can transmit pathogens to susceptible populations,leading to severe symptoms,and even death.Early identification of this population is extremely important to inhibit the spread of infectious diseases.Right now,the whole global world is suffering from a devastating infectious disease caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).In this article,a superspreader cluster event in coronavirus disease 2019(COVID-19)was identified by tracking contacting histories of infected patients.This cluster was found to be originated from an asymptomatic SARS-CoV-2 carrier,which resulted in 13 secondary cases getting infected.All the secondary patients presented with non-typical symptoms of COVID-19,such as fever,dry cough,and myalgia,one of which died of respiratory failure at the end.From this cluster,we learn that people with older ages,low immunity,multiple underlying diseases,especially pulmonary diseases,can contribute to a poor prognosis.Thus,asymptomatic superspreaders of COVID-19 can be extremely dangerous and must be handled time-efficiently.
