陈庆富
荞麦、小麦等植物遗传、进化与育种研
个性化签名
- 姓名:陈庆富
- 目前身份:
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学术头衔:
博士生导师
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学科领域:
海洋化学
- 研究兴趣:荞麦、小麦等植物遗传、进化与育种研
男,1966年生于贵州省。1998年四川农业大学作物遗传育种专业博士,2001年德国慕尼黑工业大学博士后,德国洪堡学者。现贵州师范大学遗传学教授,贵州师范大学生物技术与工程学院副院长,植物遗传育种研究所所长。
从事荞麦、小麦等植物遗传、进化与育种研究20多年。1999年参加和获得贵州省科技进步奖一等奖1项,2003年主持和获得贵州省科技进步奖二等奖1项。2003年获得贵州省青年“五四奖章”和贵州省青年科技奖。
目前主持和在研2项国家基金项目和1项贵州省优秀人才基金项目和2项自选项目。主持和完成1项德国洪堡基金项目、1项贵州省基金项目、3项自选项目。参加和完成1项国家教委高教司项目。
到目前为止,已在国内外重要学术刊物上发表论文30篇。其中,以第1作者发表论文中有7篇发表在美国杂志Crop Sciences, 英国杂志Botanical Journal of the Linnean Society, 德国杂志Genetic Resources and Crop Evolution和Plant Breeding等杂志上,并都被国际著名学术文献数据库SCI收录。主编和参编高等师范院校《遗传学》教材1部。主要贡献:发现了中国荞麦新种3个,建立了荞麦属种间系统关系新理论,创建了普通荞麦三体系列。提出了中国特有小麦起源新观点。创建了新型杂交小麦制种模式。目前的主要研究领域为中国特有小麦、贵州特色小杂粮、贵州地道中草药、贵州特色饮料等植物的遗传、进化与育种。最终目标是培育新型特色小杂粮、新型杂交小麦、高产优质的贵州地道中药材和特色饮料植物新品种,创建贵州特色植物产业,促进科学技术快速进步。这些研究将对解决三农问题、促进地方经济发展、提高人民的生活水平有重要意义。
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【期刊论文】Inheritance of disarticulation derived from some hexaploid brittle rachis wheat
陈庆富, Qing-Fu Chen
Genetic Resources and Crop Evolution 48: 21-25, 2001.,-0001,():
-1年11月30日
Inheritance of disarticulation in progenies of hybrids among Tibetan weedrace (9053 and AS907 of Triticum aestivum var. tibetanum), Yunnan hulled wheat (AS338 of T. aestivum concv. yunnanense) and spelt wheat (AS326 of T. aestivum concv. spelta) was studied. Disarticulation type is governed by some disarticulation modifying genes. These modifying genes can be divided into two groups, that is, wedge modifying genes (Wm) and barrel modifying genes (Bm). The two kinds of genes are codominant. Wedge type disarticulation is governed by the complement of at least two dominant wedge modifying genes (Wm1 and Wm2, Wm3 and Wm4, or Wm5 and Wm6). Barrel type disarticulation is controlled by at least one dominant barrel modifying gene (Bm1, Bm2 or Bm3) and its expression can be inhibited in certain genetic backgrounds. As to the background inhibition that dominant barrel modifying genes cannot express in some homozygous brittle rachis wheat, the hypothesis of epistasy of many homozygous alleles was suggested.
Barrel modifying genes,, Brittle rachis genes,, Spelt wheat,, Tibetan weedrace,, Triticum sp., ,, Wedge modifying genes,, Yunnan hulled wheat
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陈庆富, Qing-Fu Chen, * Sai. L. K. Hsam, and Friedrich J. Zeller
Published in Crop Sci. 44: 1511-1518 (2004).,-0001,():
-1年11月30日
Eleven accessions of eight species belonging to the big-achene perengroup of genus Fagopyrum Moench were studied on the basis of pereninterspecific hybridization, GOT (i.e., glutamate oxaloacetate trans-aminase) isozyme band characteristics, and cytology. Following nor-mal pollination, there were high crossabilities (8-37%) among these different species, but all hybrid seeds were empty except the crosses among F. esculentum Moench, F. esculentum var. homotropicum (Ohnishi) Q-F. Chen (F. homotropicum Ohnishi), and F. esculentum subsp. ancestrale Ohnishi, indicating that there are no reproductional isolations among F. esculentum, F. esculentum var. homotropicum, and F. esculentumsubsp. ancestrale. The cytological observation showed desigthat the hybrid F. esculentum F. esculentum var. homotropicum shows eight normal bivalents in meiosis of pollen mother cells. In addition, the results of GOT isozyme showed that F. esculentum, F. esculentum var. homotropicum, and F. zuogongense possess common GOT isoenzyme bands. Fagopyrum megaspartanium and F. pilus exshow nique GOT bands as well as karyotypes supporting the classifi-cation of individual species. The cytological analyses showed that tetraploid F. cymosum and F. giganteum are allotetraploids with two different size genomes. The identities of the different genomes in the big-achene group of genus Fagopyrum and the putative progenitors of common buckwheat are discussed.
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【期刊论文】Chromosome location of the gene for brittle rachis in the Tibetan weedrace of common wheat
陈庆富, Qing-Fu Chen, Chi Yen *, & Jun-Liang Yang
Genetic Resources and Crop Evolution 45: 407-410, 1998.,-0001,():
-1年11月30日
The brittle rachis of the Tibetan weedrace (Triticum aestivum var. tibetanum) was found to be governed by a single dominant gene on the short arm of chromosome 3D. The new brittle rachis gene was designated Br1. This study also discovered that the type of disarticulation is governed by many genes that may differ from brittle rachis genes. In other words, the same brittle rachis gene may exhibit various types of disarticulation in various genetic backgrounds. So, after the brittle rachis gene (barrel type) in Aegilops tauschii entered hexaploid wheat through the amphidiploid path, it might exhibit the wedge type of disarticulation.
common wheat,, Tibetan weedrace,, Yunnan hulled wheat,, type of disarticulation,, brittle rachis,, gene location
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陈庆富, Qing-Fu CHEN *, Sai L.K. HSAM and Friedriech J. ZELLER
,-0001,():
-1年11月30日
The diploid and autotetraploid common buckwheat, their autotriploid hybrids and trisomics were studied comparatively on aspects of the chromosome behavior at meiosis of pollen mother cells (PMCs) and the fertility of pollen grains. The results of observation of meiosis MI of PMCs showed that the average configurations of chromosome pairing in the autotetraploid variety Emka, its inbreeding line Emka-1 and autotriploid hybrids are 4x=0.67I+11.60+0.32+1.79IV=32, 4x =0.71I+7.42+1.19+ⅡⅢⅡⅢ3.22IV=32, and 3x=4.71I+4.71+3.29Ⅱ=24Ⅲ, respectively. The averages of micronuclei number in TⅡ cells in the diploid variety Siva, autotetraploid Emka and Emka-1, and the autotriploid hybrids are 0.03, 0.09, 0.20, and 0.86, respectively. Fertility of pollen grains showed that Siva has the highest fertility of pollen grains (the dyed rate of pollen grains in I2-KI solution is 98.89%), followed by autotetraploid Emka and Emka-1 (95.33% and 93.33%) and the autotriploid hybrids (only 31.28%) with the lowest fertility. The correlation analyses showed that there is significantly negative correlation between dyed rate of pollen grains (x1) and the average of univalent number (x2) or the averages of micronuclei number (x3), with r12=-0.996** or r13 =-0.993** respectively and significantly positive correlation (r23=0.994**) between x2 and x3, indicating that the number of univalent is one of the important factors resulting in formation of micronuclei at TⅡ of meiosis and that univalent number and micronuclei number can cause genetic and physiological imbalances and then result in an increase of abortion of pollen grains. In the autotriploid hybrids backcrossed with diploid variety Sobano there are 27.72% rate of empty seeds set and only 3.08% rate of normal seeds set. Among 34 normal achenes of the autotriploid hybrids, there were 6 double trisomics (2n+2), 23 trisomics (2n+1) and 5 diploid plants (2n). The segregation of short-style (Ss) and long-style (ss) plants in back-crossing progenies of Tr1-18 trisomics showed that the S gene locates on Tr15 trisomics of common buckwheat.
Autotriploid, Autotetraploid, Chromosome pairing, Common buckwheat, Fertility, eterostyle, Trisomics.,
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【期刊论文】Hybridization between Fagopyrum (Polygonaceae) species native to China
陈庆富, QING-FU CHEN
Botanical Journal of the Linnean Society (1999) 131: 177-185. With 17 figures,-0001,():
-1年11月30日
Thirty-eight crosses between seven Fagopyrum species native to China were studied. Following normal pollination, there were very low inter-group crossabilities (only 0-3%) between five species in the large-achene group and two species (F. gracilipes and F. pleioramosum) in the small-achene group, and high (15-50%) within the large-achene group, i.e. F. esculentum, F. tataricum, F. zuogongense, F. pilus and F. megaspartanium. Crosses between various types of flowers (homostyle, heterostyle etc.) suggested that the intraspecific incompatibility also occurs in interspecific crosses. The hybrid seeds obtained from interspecific crosses all withered or shrivelled and lacked activity. Only one hybrid plant was obtained, tetraploid F. esculentum tetraploid F. zuogongense. The hybrid displayed anomalous behaviour at meiosis, pollen grain sterility and withering of achenes, confirming the genetic differences between F. esculentum and F. zuogongense. The results support the hypothesis that F. megaspartanium and F. pilus are the possible ancestors of cultivated buckwheat
-abnormal meiosis, - buckwheat, - cytology, - interspecific crossability, - origin and evolution.,
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