首页|Two chemical mutagens modulate the seed germination, growth, and phenotypic characteristics of Chinese fir ( Cunninghamia lanceolata )
Two chemical mutagens modulate the seed germination, growth, and phenotypic characteristics of Chinese fir ( Cunninghamia lanceolata )
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Chinese fir ( Cunninghamia lanceolata (Lamb.) Hook), a fast-growing and economically important timber tree species in China, is widely used in construction, furni-ture, and paper manufacture but has a long breeding cycle. Chemical mutagens, such as ethyl methane sulfonate (EMS) and sodium azide (SA), are widely used in crops such as rice, wheat, cotton, soybean and sugarcane but their utility for tree breeding is unknown. In this study we examined the effects of EMS and SA on Chinese fir seed germination and growth. Chinese fir seeds were treated with the two chemi-cal mutagens; were planted in Jiangle County, Fujian Prov-ince, China; and their heights were measured from 2011 to 2017. The concentrations and durations of treatment with the two chemical mutagens were significantly associated with the Chinese fir seedling and mortality rates, as well as with the heights of trees from the seedling stage to 3 years old. We also generated 127 mutants with abnormal branches and reproductive growth. We report here the effects of two chemical mutagens on Chinese fir breeding; our data will contribute to knowledge of the utility of EMS and SA in forestry.
Chemical mutagensChinese firSeedling growthSeedling rateMutants
Sen Cao、Ruiyang Hu、Xialei Wu、Yuhan Sun、Bo Wu、Hongjing Duan、Huazhong Lin、Mingjing Wu、Luming Fang、Xiaolong Yu、Wei Wu、Yun Li
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Beijing Advanced Innovation Center for Tree Breeding by Molecular Design,National Engineering Laboratory for Tree Breeding,College of Biological Sciences and Technology,Beijing Forestry University,Beijing 100083,People's Republic of China
Experimental Center of Forestry in North China,Chinese Academy of Forestry,Beijing 102300,People's Republic of China
Fujian Jiangle State-owned Forestry Farm,Sanming 353300,Fujian,People's Republic of China
This work was supported by grants from the Guangdong Provincial Science and Technology Plan ProjectScience and Technology Research Project of Beijing Forestry UniversityResearch and Development Project of Beijing Forestry UniversityNational Natural Science Foundation of Chinaand the Key Project of the National Forestry Bureau
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