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Flavanone and flavonoid hydroxylase genes regulate fiber color formation in naturally colored cotton
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作者 Hongli Zheng Bailin Duan +6 位作者 Bo Yuan Zhengbin Chen Dongliang Yu Liping Ke Wenlong Zhou Haifeng Liu Yuqiang Sun 《The Crop Journal》 SCIE CSCD 2023年第3期766-773,共8页
Using naturally colored cotton(NCC)can eliminate dyeing,printing and industrial processing,and reduce sewage discharge and energy consumption.Proanthocyanidins(PAs),the primary coloration components in brown fibers,ar... Using naturally colored cotton(NCC)can eliminate dyeing,printing and industrial processing,and reduce sewage discharge and energy consumption.Proanthocyanidins(PAs),the primary coloration components in brown fibers,are polyphenols formed by oligomers or polymers of flavan-3-ol units derived from anthocyanidins.Three essential structural genes for flavanone and flavonoid hydroxylation encoding flavanone-3-hydroxylase(F3H),flavonoid 3’-hydroxylase(F3’H)and flavonoid 3’5’-hydroxylase(F3’5’H)are initially committed in the flavonoid biosynthesis pathway to produce common precursors.The three genes were all expressed predominantly in developing fibers of NCCs,and their expression patterns varied temporally and spatially among NCC varieties.In GhF3Hi,GhF3’Hi and GhF3’5’Hi silenced lines of NCC varieties XC20 and ZX1,the expression level of the three genes decreased in developing cotton fiber,negatively correlated with anthocyanidin content and fiber color depth.Fiber color depth and type in RNAi lines changed with endogenous gene silencing efficiency and expression pattern,the three hydroxylase genes functioned in fiber color formation.GhF3H showed functional differentiation among NCC varieties and GhF3’H acted in the accumulation of anthocyanin in fiber.Compared with GhF3’H,GhF3’5’H was expressed more highly in brown fiber with a longer duration of expression and caused lighter color of fibers in GhF3’5’H silenced lines.These three genes regulating fiber color depth and type could be used to improve these traits by genetic manipulation. 展开更多
关键词 Naturally colored cotton Brown cotton fiber fiber color Anthocyanidin Flavanone/flavanoid hydroxylase
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Gamma-radiation effects in pure-silica-core photonic crystal fiber 被引量:1
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作者 蔡伟 宋凝芳 +4 位作者 金靖 宋镜明 李伟 罗文勇 徐小斌 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第11期258-263,共6页
We investigated the steady state gamma-ray radiation response of pure-silica-core photonic crystal fibers(PSC-PCFs)under an accumulated dose of 500 Gy and a dose rate of 2.38 Gy/min. The radiation-induced attenuatio... We investigated the steady state gamma-ray radiation response of pure-silica-core photonic crystal fibers(PSC-PCFs)under an accumulated dose of 500 Gy and a dose rate of 2.38 Gy/min. The radiation-induced attenuation(RIA) spectra in the near-infrared region from 800 nm to 1700 nm were obtained. We find that the RIA at 1550 nm is related with hydroxyl(OH^-) absorption defects in addition to the identified self-trapped hole(STH) defects. Moreover, it is proposed and demonstrated that reduced OH^-absorption defects can decrease the RIA at 1550 nm. The RIA at 1550 nm has effectively declined from 27.7 d B/km to 3.0 dB/km through fabrication improvement. Preliminary explanations based on the unique fabrication processes were given to interpret the RIA characteristics of PSC-PCFs. The results show that the PSC-PCFs,which offer great advantages over conventional fibers, are promising and applicable to fiber sensors in harsh environments. 展开更多
关键词 photonic crystal fibers radiation-induced attenuation color centers fiber optics sensors
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Genetic Linkage Analysis of the Natural Colored Fiber and Fuzzless Traits in Cotton
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作者 LI Fu-zhen1,QIU Xin-mian1,WANG Ju-qin1,LU Yan-ting1,BAO Li-sheng2(1.Center of Crop Molecular Breeding,Institute of Crop and Nucleonic Technology Utilization,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China 2.Technical Popularization Station of Economic Specialty,Jinhua 321017,China) 《棉花学报》 CSCD 北大核心 2008年第S1期57-,共1页
Genetic linkage relationship of the natural colored fiber and six fuzzless seed germplasms in obsolete backgrounds of Gossypium hirsutum(AD genome) and G.barbadense were analyzed in the
关键词 natural colored fiber genes fuzzless gene genetic linkage analysis recombinant inbred lines
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New Type Color Fiber Application&Trend of Color Spun Product Seminar Open in May
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《China Textile》 2009年第5期15-15,共1页
Cope with the global financial crisis,domestic Chinese textile enterprises is facing with more challenges and
关键词 OPEN New Type Color fiber Application&Trend of Color Spun Product Seminar Open in May
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