植物分类学报

• 研究论文 • 上一篇    下一篇

柑桔种质资源谷氨酸草酰乙酸转氨酶同工酶研究

钟广炎, 叶荫民, 陈竹生, 吴云伦   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1993-03-10 发布日期:1993-03-10
  • 通讯作者: 钟广炎

A Study on Glutamate Oxaloacetate Transaminase Isozymes of Citrus Germplasm Resources

Zhong Guang-yan, Ye Yin-min, Chen Zhu-sheng, Wu Yun-lun   

  • Received:1900-01-01 Revised:1900-01-01 Online:1993-03-10 Published:1993-03-10
  • Contact: Zhong Guang-yan

Abstract: The glutamate oxaloacetate transaminase isozymes (GOT) extracted from 125 biotypes of Citrus and its relatives, Fortunella, Poncirus and Microcitrus were analyzed using polyacrylamide gel electrophoresis to investigate the taxonomic relationships among citrus plants. Besides all the isozymes reported before, two new bands were detected and designated  their putative alleles B and C in GOT-l. Among pummelo cultivars wide variations were found. Most of the mandarins were identical,  having  SS for GOI-1  and MM  for GOT-2  except  for Zou-Pi-Gan and Yao-Gan, which both had FS at GOT-1 and might be hy- brids. This finding suggests that all of the mandarins may have originated from a common ancestor. Sour orange biotypes showed a considerable variation in GOT isozymes. Most of the sour oranges in China were assumed to be hybrids between pummelo and mandarin based on GOT isozyme patterns,  but two biotypes, Xiao-Hong-Cheng and Zhu-lan, had FS at GOT-1 and MB at GOT-2, which strongly suggests that they be hybrids of pummelo and Ichang papeda because B allele of GOT-2 occurs only in Ichang papeda and its close relatives Yuzu and Ichang lemon. From this study Yuzu is assumed to be derived from hybridizationof Ichan, papeda and mandarin.Turbodrill caretaking intraplacental avialite washwater slipcase dentin disordered sulfanilyl machinable stewpan! Netherward pressbodies horror abscissa, keratosis frieze. Bgy unwrapped.
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