Early flowering promotes early maturity, production, and the capacity to counteract biotic and abiotic stresses, making it an important agronomic trait in zucchini. The present study demonstrated that the zucchini inb...Early flowering promotes early maturity, production, and the capacity to counteract biotic and abiotic stresses, making it an important agronomic trait in zucchini. The present study demonstrated that the zucchini inbred line ‘19’ consistently flowered early, taking significantly fewer days to bloom the first female flower(DFF) than the inbred line ‘113’. Genetic analysis revealed that DFF, an inheritable quantitative trait, is controlled by multiple genes. Based on the strategy of quantitative trait locus(QTL) sequencing(QTL-seq) combined with linkage analysis, three QTLs for DFF were identified on chromosomes 4, 11, and 20. This study used additional F2 populations grown under different environmental conditions for QTL mapping analysis of DFF with insertion/deletion(InDel) markers to validate these results. Using the composite interval mapping(CIM) method of R/qtl software, we only identified one major locus under all environmental conditions, located in a 117-kb candidate region on chromosome 20. Based on gene annotation, gene sequence alignment, and qRT-PCR analysis, we found that the Cp4.1LG20g08050 gene encoding a RING finger protein may be a candidate gene for the opposite regulation of early flowering in zucchini. In summary, these results lay a foundation for a better understanding of early flowering and improving early flowering-based breeding strategies in zucchini.展开更多
For years,on the occasions of China’ national festivals,CPC’s major events and CAFIU’s big activities,I have always received corresponding letters from a Polish elder who lived thousands of miles away.These letters...For years,on the occasions of China’ national festivals,CPC’s major events and CAFIU’s big activities,I have always received corresponding letters from a Polish elder who lived thousands of miles away.These letters,expressing wishes,congratulations,expectations or emotions,record not only the old man’s deep affections for China and his Chinese friends but also the展开更多
Appreciating a Chinese painting is a bit different from appreciating a Western painting.Chinese paintings are not overly realistic.For example,light,shadow and perspective are not stressed.One needs knowledge of Chine...Appreciating a Chinese painting is a bit different from appreciating a Western painting.Chinese paintings are not overly realistic.For example,light,shadow and perspective are not stressed.One needs knowledge of Chinese culture to understand the lingering charm and subtle nuances.This painting depicts peach flowers on the shores of a river in spring.My inspiration originated from'The Tale of the Peach Blossom Spring'展开更多
IN those days, when heavy snow sealed the mountain passes, it was only the sight of red paper-cuts on the windows which said to me there were people living in those houses covered with deep and solid snow. Every time ...IN those days, when heavy snow sealed the mountain passes, it was only the sight of red paper-cuts on the windows which said to me there were people living in those houses covered with deep and solid snow. Every time I travel to the Northwest, I have come across paper-cutters who touch me so deeply that I can’t forget their faces even long after I return to the city. Sometimes in the harsh winters of the Northwest, there is no color but the monotonous white of the snow until the lively red of the paper-cuts spring into sight. These colorful, waiting things like cheerful signals of warmth and humanity,展开更多
The great social changes since China's reform and opening up have facilitated the revival and development of reportage.Life in the New Era has provided infinitely rich and valuable themes and materials for the cre...The great social changes since China's reform and opening up have facilitated the revival and development of reportage.Life in the New Era has provided infinitely rich and valuable themes and materials for the creation of reportage.Among them,the theme of targeted poverty reduction and poverty alleviation has become the focus of reportage writing in recent years.The“Poverty Alleviation Trlogy”:In Leaf and Bloom,Listening to the Voices of the Blooming Flowers(Huafan Yemao,Qingting Huakai de Shengyin),The Sunshine of the Blissful Spring(Baode Sanchunhui),and A New Lease of Life:The Story of Wanshan(Kan Wanshan Hongbian),written by famous writer Ouyang Qiansen,is not only a self-evident breakthrough of Guizhou-themed reportage and its status within national literary circles,but is also strong evidence of the reflection on major themes and the spirit of the times through reportage,which,in this sense,is of irreplaceable significance.展开更多
基金supported by the grants from the National Natural Science Foundation of China (32072590 and 32002051)the China Postdoctoral Science Foundation (2019M661244)the Academic Backbone Foundation of Northeast Agricultural University, China (20XG03)。
文摘Early flowering promotes early maturity, production, and the capacity to counteract biotic and abiotic stresses, making it an important agronomic trait in zucchini. The present study demonstrated that the zucchini inbred line ‘19’ consistently flowered early, taking significantly fewer days to bloom the first female flower(DFF) than the inbred line ‘113’. Genetic analysis revealed that DFF, an inheritable quantitative trait, is controlled by multiple genes. Based on the strategy of quantitative trait locus(QTL) sequencing(QTL-seq) combined with linkage analysis, three QTLs for DFF were identified on chromosomes 4, 11, and 20. This study used additional F2 populations grown under different environmental conditions for QTL mapping analysis of DFF with insertion/deletion(InDel) markers to validate these results. Using the composite interval mapping(CIM) method of R/qtl software, we only identified one major locus under all environmental conditions, located in a 117-kb candidate region on chromosome 20. Based on gene annotation, gene sequence alignment, and qRT-PCR analysis, we found that the Cp4.1LG20g08050 gene encoding a RING finger protein may be a candidate gene for the opposite regulation of early flowering in zucchini. In summary, these results lay a foundation for a better understanding of early flowering and improving early flowering-based breeding strategies in zucchini.
文摘For years,on the occasions of China’ national festivals,CPC’s major events and CAFIU’s big activities,I have always received corresponding letters from a Polish elder who lived thousands of miles away.These letters,expressing wishes,congratulations,expectations or emotions,record not only the old man’s deep affections for China and his Chinese friends but also the
文摘Appreciating a Chinese painting is a bit different from appreciating a Western painting.Chinese paintings are not overly realistic.For example,light,shadow and perspective are not stressed.One needs knowledge of Chinese culture to understand the lingering charm and subtle nuances.This painting depicts peach flowers on the shores of a river in spring.My inspiration originated from'The Tale of the Peach Blossom Spring'
文摘IN those days, when heavy snow sealed the mountain passes, it was only the sight of red paper-cuts on the windows which said to me there were people living in those houses covered with deep and solid snow. Every time I travel to the Northwest, I have come across paper-cutters who touch me so deeply that I can’t forget their faces even long after I return to the city. Sometimes in the harsh winters of the Northwest, there is no color but the monotonous white of the snow until the lively red of the paper-cuts spring into sight. These colorful, waiting things like cheerful signals of warmth and humanity,
文摘The great social changes since China's reform and opening up have facilitated the revival and development of reportage.Life in the New Era has provided infinitely rich and valuable themes and materials for the creation of reportage.Among them,the theme of targeted poverty reduction and poverty alleviation has become the focus of reportage writing in recent years.The“Poverty Alleviation Trlogy”:In Leaf and Bloom,Listening to the Voices of the Blooming Flowers(Huafan Yemao,Qingting Huakai de Shengyin),The Sunshine of the Blissful Spring(Baode Sanchunhui),and A New Lease of Life:The Story of Wanshan(Kan Wanshan Hongbian),written by famous writer Ouyang Qiansen,is not only a self-evident breakthrough of Guizhou-themed reportage and its status within national literary circles,but is also strong evidence of the reflection on major themes and the spirit of the times through reportage,which,in this sense,is of irreplaceable significance.
