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Dive into the research topics where Sang Xianchun is active.

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Featured researches published by Sang Xianchun.


Molecular Breeding | 2008

Prediction of hybrid grain yield performances in Indica Rice (Oryza sativa L.) with effect-increasing loci

Zha RenMing; Ling Yinghua; Yang Zhenglin; Zhao Fangming; Zhong BingQiang; Xie Rong; Sang Xianchun; Guang-Hua He

One hundred and fifty-one rice hybrids produced in two sets of half-dialell crosses and their parents (13 cytoplasmic male sterile lines and 19 restorers) were used to predict the F1 performances of seven yield traits through the parental genetic distances (GD) based on SSR markers. The positive loci (PL) and effect-increasing loci (IL), which were screened from SSR polymorphic loci by the F1 traits of 32 parents, together with total loci (TL), were utilized to estimate parental GD and the models were found to predict the traits of hybrids derived from different parents, fixed parents, and different environments, respectively. The results were as follows: (1) 550 polymorphic loci were detected from 174 SSR markers: a dendrogram based on these loci could separate all the sterile and restorer lines used in the present study, which indicated that parental genetic diversity of F1 was large; (2) the correlations between F1 traits and parental GDs based on IL ranged from 0.61 to 0.87 with a mean of 0.76, and they were higher than those on TL or on PL; (3) predictions based on IL for F1 traits (except grain weight per plant) derived from different environments were ideal, but worse for F1 traits derived from different parents; and (4) IL was more effective than TL and PL in predicting traits of F1 with fixed parents, and predictions for fixed restorer combinations were more effective than those for fixed sterile line combinations. These results should facilitate molecular prediction for hybrid yield and other traits by means of both elite sterile and restorer lines.


Acta Agronomica Sinica | 2009

Genetic analysis and molecular mapping of a yellow green leaf gene (YGL4) in rice (Oryza sativa L.).

Liu MengMeng; Sang Xianchun; Ling Yinghua; Du Peng; Zhao Fangming; Yang Zhenglin; Guang-Hua He

A leaf color mutant was obtained by EMS treating seeds of restorer line Jinhui 10,this mutation showed complete yellow green leaves during the life,and could be regenerated and inherited stably according to the observation of 5 generations.The content of its total chlorophyll ranged from 2.01 to 2.28 mg g-1,which was only 38.2%to 50.5%of the original parent.Compared with the original parent,the mutation had no significant difference in the traits of main panicle length,first branch number,filled grain number of main panicle,seed setting rate and 1000-grain weight,except the effective panicle and plant height which were decreased significantly.Genetic analysis of F2 populations confirmed that the mutational character was controlled by a single recessive nuclear gene,temporarily designated as YGL4.The gene was mapped between two microsatellite markers RM3123 and RM590,with genetic distances of 7.6 and 7.8 cM to the two markers respectively.New microsatellite markers were designed between RM3123 and RM590,and the YGL4 gene was final mapped between RM1162 and RM7093,with genetic distances of 1.8 and 4.0 cM to each of them respectively.This result provided a foundation of molecular marker-assisted breeding and map-based cloning of YGL4 gene.


Acta Agronomica Sinica | 2009

Characteristics of photosynthesis in two leaf color mutants of rice.

LüDianHua; Zong Xuefeng; Wang Sangen; Ling Yinghua; Sang Xianchun; Guang-Hua He


Archive | 2014

Rice zebra-leaf mutant gene ZEBRA15 as well as protein encoded by same and application of gene

Zhao Fangming; Guang-Hua He; Shi Junqiong; Wang Qiushi; Sang Xianchun; Ling Yinghua; Li Yunfeng; Wang Nan; Yang Zhenglin


Acta Agronomica Sinica | 2010

Identification and molecular mapping of stripe leaf mutant st(t) in rice (Oryza sativa L.).

Sang Xianchun; Xu FangFang; Ling Yinghua; Zhao Fangming; Yang Zhenglin; Tang YanQiang; Tian XiaoQing; Li Yunfeng; Guang-Hua He


Archive | 2015

Yellow green leaf mutant gene YGL6 of rice, protein encoded by yellow green leaf mutant gene YGL6 and application of yellow green leaf mutant gene YGL6

Shi Junqiong; Zhao Fangming; Guang-Hua He; Sang Xianchun; Ling Yinghua; Wang Nan; Yang Zhenglin


Archive | 2017

Use of rice three-flower spikelet gene LF1 in increase of yield of gramineous food crops

Li Yunfeng; Zhang Ting; Guang-Hua He; Sang Xianchun; Ling Yinghua; Yang Zhenglin


Xinan Daxue Xuebao. Ziran Kexue Ban | 2016

日本晴と5つの優占種の多型マーカーのスクリーニングと遺伝的差異分析を行った。【JST・京大機械翻訳】

Zhao Fangming; Guo Chao; Wei Xia; Yang Zhenglin; Ling Yinghua; Sang Xianchun; Wang Nan; Zhang Changwei; Li Yunfeng; Guang-Hua He


Xinan Daxue Xuebao. Ziran Kexue Ban | 2016

Polymorphic SSR Markers Screening and Genetic Difference Analysis Between Nipponbare and Five Excellent Restorer Lines

Zhao Fangming; Guo Chao; Wei Xia; Yang Zhenglin; Ling Yinghua; Sang Xianchun; Wang Nan; Zhang Changwei; Li Yunfeng; Guang-Hua He


Nongye Kexue Xuebao(Yingwenban) | 2016

mps1,イネ(Oryza sativaL.)における未熟葉の老化変異株の表現型特性化と精密マッピング【Powered by NICT】

Liu Zhongxian; Cui Yu; Wang Zhongwei; Xie Yuanhua; Sang Xianchun; Yang Zhenglin; Zhang Changwei; Zhao Fangming; Guang-Hua He; Ling Yinghua

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Xie Rong

Southwest University

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Li Yun

Southwest University

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