Specimens of Ceratopogonidae were collected from the Nachitai District of Qinghai Province.Among them,a new species of the genus Palpomyia was discovered and named Palpomyia nachitai He,Liu and Yu sp.nov.
In this paper, 33 known species of Palpomyia are described. A new species of Palpomyia named Palpomyia nanniwana He, Liu and Yu sp. nov. is reported from Shaanxi Province, China.
Variables among the macroclimate, microclimate and rice canopy categories and three other different farming systems were evaluated on their effects to the egg and larval density of Aedes spp. mosquitoes known as trans...Variables among the macroclimate, microclimate and rice canopy categories and three other different farming systems were evaluated on their effects to the egg and larval density of Aedes spp. mosquitoes known as transmitters of animal and human diseases. No statistical difference in egg density （#eggs/mL） among farming systems （P = 0.345） were observed. However, there was significant difference in larval density （#1arvae/mL） among farming systems （P 〈 0.001） particularly between organic and conventional farms and between organic and mixed farms at （P 〈 0.05）. Among the variables in the macroclimate category, wind velocity and ambient temperature significantly influenced larval density in conventional farms. Among the variables in the microclimate category, water temperature significantly contributed to larval density in both the mixed and conventional farms whereas water turbidity, in conventional farms. Among the variables in the rice canopy category, the number of tillers per plant was a significant contributor to larval density in all farm types. No variable among the environmental exposure categories affected the larval density in organic farms.展开更多
Vast viruses are thought to be associated with mosquitoes.Anopheles sinensis,Armigeres subalbatus,Culex quinquefasciatus,and Culex tritaeniorhynchus are very common mosquito species in China,and whether the virome str...Vast viruses are thought to be associated with mosquitoes.Anopheles sinensis,Armigeres subalbatus,Culex quinquefasciatus,and Culex tritaeniorhynchus are very common mosquito species in China,and whether the virome structure in each species is species-specific has not been evaluated.In this study,a total of 2222 mosquitoes were collected from the same geographic location,and RNAs were sequenced using the Illumina Miseq platform.After querying to the Refseq database,a total of 3,435,781,2,223,509,5,727,523,and 6,387,867 paired-end reads were classified under viral sequences from An.sinensis,Ar.subalbatus,Cx.quinquefasciatus,and Cx.tritaeniorhynchus,respectively,with the highest prevalence of virus-associated reads being observed in Cx.quinquefasciatus.The metagenomic comparison analysis showed that the virus-related reads were distributed across 26 virus families,together with an unclassified group of viruses.Anelloviridae,Circoviridae,Genomoviridae,Iridoviridae,Mesoniviridae,Microviridae,Myoviridae,Parvoviridae,Phenuiviridae,and Podoviridae were the top ten significantly different viral families among the four species.Further analysis reveals that the virome is species-specific in four mosquito samples,and several viral sequences which maybe belong to novel viruses are discovered for the first time in those mosquitoes.This investigation provides a basis for a comprehensive knowledge on the mosquito virome status in China.展开更多
文摘Specimens of Ceratopogonidae were collected from the Nachitai District of Qinghai Province.Among them,a new species of the genus Palpomyia was discovered and named Palpomyia nachitai He,Liu and Yu sp.nov.
文摘In this paper, 33 known species of Palpomyia are described. A new species of Palpomyia named Palpomyia nanniwana He, Liu and Yu sp. nov. is reported from Shaanxi Province, China.
文摘Variables among the macroclimate, microclimate and rice canopy categories and three other different farming systems were evaluated on their effects to the egg and larval density of Aedes spp. mosquitoes known as transmitters of animal and human diseases. No statistical difference in egg density （#eggs/mL） among farming systems （P = 0.345） were observed. However, there was significant difference in larval density （#1arvae/mL） among farming systems （P 〈 0.001） particularly between organic and conventional farms and between organic and mixed farms at （P 〈 0.05）. Among the variables in the macroclimate category, wind velocity and ambient temperature significantly influenced larval density in conventional farms. Among the variables in the microclimate category, water temperature significantly contributed to larval density in both the mixed and conventional farms whereas water turbidity, in conventional farms. Among the variables in the rice canopy category, the number of tillers per plant was a significant contributor to larval density in all farm types. No variable among the environmental exposure categories affected the larval density in organic farms.
基金supported by the Ministry of Science and Technology of China (Science and Technology Basic Work Program 2013FY113500)
文摘Vast viruses are thought to be associated with mosquitoes.Anopheles sinensis,Armigeres subalbatus,Culex quinquefasciatus,and Culex tritaeniorhynchus are very common mosquito species in China,and whether the virome structure in each species is species-specific has not been evaluated.In this study,a total of 2222 mosquitoes were collected from the same geographic location,and RNAs were sequenced using the Illumina Miseq platform.After querying to the Refseq database,a total of 3,435,781,2,223,509,5,727,523,and 6,387,867 paired-end reads were classified under viral sequences from An.sinensis,Ar.subalbatus,Cx.quinquefasciatus,and Cx.tritaeniorhynchus,respectively,with the highest prevalence of virus-associated reads being observed in Cx.quinquefasciatus.The metagenomic comparison analysis showed that the virus-related reads were distributed across 26 virus families,together with an unclassified group of viruses.Anelloviridae,Circoviridae,Genomoviridae,Iridoviridae,Mesoniviridae,Microviridae,Myoviridae,Parvoviridae,Phenuiviridae,and Podoviridae were the top ten significantly different viral families among the four species.Further analysis reveals that the virome is species-specific in four mosquito samples,and several viral sequences which maybe belong to novel viruses are discovered for the first time in those mosquitoes.This investigation provides a basis for a comprehensive knowledge on the mosquito virome status in China.
