Title :
Preliminary Study on the Mutagenic Effects of Space Flight on Pepper Seeds
Author :
Wang Dehui ; Yu Ying ; Guo Changhong ; Guo Yahua
Author_Institution :
Dept. of Biol., Harbin Normal Univ., Harbin, China
Abstract :
To analyze the biological effects of space flight on pepper seed, the cytological effects of SP1, SP2, and SP3 generations of pepper III-31 lines after space flight were studied. Cytogenetic analyses were performed as the frequency of chromosomal aberrations assay and mitotic index (MI). The results showed that the space environment can increase the mitotic index, and induce different chromosomal aberrations including micronuclei, chromosomal bridges, fragments, laggards, and multipolar division etc. The highest mitotic index and rate of chromosomal aberrations were found in III-31-SP2(P <; 0.01).
Keywords :
aerospace biophysics; botany; cellular biophysics; genetics; chromosomal aberrations; chromosomal aberrations assay; chromosomal bridges; cytogenetic analysis; fragments; laggards; micronuclei; mitotic index; multipolar division; mutagenic effects; pepper seeds; space environment; space flight; Aerospace materials; Agriculture; Biological cells; Bridges; Crops; Frequency; Genetic mutations; Ionizing radiation; Performance analysis; Postal services;
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
DOI :
10.1109/ICBBE.2010.5515764
