Morphological and molecular changes of maize plants after seeds been flown on recoverable satellite

	Morphological and molecular changes of maize plants after seeds been flown on recoverable satellite
	Mei, M; Qiu, Y; Sun, Y; Huang, R; Yao, J; Zhang, Q; Hong, M; Ye, J
刊名	LIFE SCIENCES: BIODOSIMETRY, CHROMOSOME DAMAGE AND CARCINOGENESIS
	1999
卷号	22 期号:12 页码:1691-1697
通讯作者	S China Agr Univ, Guangzhou 510642, Peoples R China ; Harbin Inst Technol, Harbin 150001, Peoples R China ; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China
英文摘要	Dry seeds of Zea mays, heterozygous for Lw(1)/lw(1) alleles, sandwiched between nuclear track detectors aboard Chinese satellite for 15 days, were recovered and mutations in morphological characters on plants developed from these seeds, as well as their selected progenies, were investigated. The dosimetric results indicated that 85% of the seeds received at least 1 hit with Z greater than or equal to 20. About 10% of plants developed from flown seeds and 40% of observed selfed lines from the first generation plants showed some morphological changes, such as yellow stripes displayed on leaves, dwarf, anomogensis of floral organs and yellow-green seedlings, when compared with those from ground control. Using yellow stripes on leaves as the main endpoint for evaluating mutation induced in space environment, the frequency of stripe occurrence was 4.6% in the first generation plants, comparable with the results obtained from Long Duration Exposure Facility (LDEF) mission (Mei et al., 1994), but much lower than those from ground based (60) Go-gamma treatment at a dose of 100 Gy, which reached 35.5% in the selfed lines of the second generation. One hundred and ten random primers were screened in RAPD analysis to detect the variation on genomic DNA of plants with stripes on leaves. Of these primers, 10.9% were able to generate polymorphic bands between mutated plants and control, also, common band patterns in several progenies with the same mutation phenotype were observed. These results demonstrated that space radiation environment could induce inheritable mutagenic effects on plant seeds, and verified the change in genetic material in the mutants. Further study will be needed for a better understand of the nature and mechanism of this induction of mutation. (C) 1999 COSPAR. Published by Elsevier Science Ltd.
学科主题	Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Genetics & Heredity; Geology; Meteorology & Atmospheric Sciences
类目[WOS]	Engineering, Aerospace ; Astronomy & Astrophysics ; Biology ; Genetics & Heredity ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
研究领域[WOS]	Engineering ; Astronomy & Astrophysics ; Life Sciences & Biomedicine - Other Topics ; Genetics & Heredity ; Geology ; Meteorology & Atmospheric Sciences
原文出处	SCI
语种	英语
WOS记录号	WOS:000080096200007
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/239478]
专题	高能物理研究所_多学科研究中心中国科学院高能物理研究所_中国散裂中子源
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Mei, M,Qiu, Y,Sun, Y,et al. Morphological and molecular changes of maize plants after seeds been flown on recoverable satellite[J]. LIFE SCIENCES: BIODOSIMETRY, CHROMOSOME DAMAGE AND CARCINOGENESIS,1999,22(12):1691-1697.
APA	Mei, M.,Qiu, Y.,Sun, Y.,Huang, R.,Yao, J.,...&Ye, J.(1999).Morphological and molecular changes of maize plants after seeds been flown on recoverable satellite.LIFE SCIENCES: BIODOSIMETRY, CHROMOSOME DAMAGE AND CARCINOGENESIS,22(12),1691-1697.
MLA	Mei, M,et al."Morphological and molecular changes of maize plants after seeds been flown on recoverable satellite".LIFE SCIENCES: BIODOSIMETRY, CHROMOSOME DAMAGE AND CARCINOGENESIS 22.12(1999):1691-1697.