Karyotype Comparison of F_1 and F_2 Hybrids of Sugarcane and Erianthus fulvus

• 作 者: Xianhong WANG Fusheng LI Lilian HE Hongbo LOU Qinghui YANG Shunchang HE
• 机 构: Sugarcane Research Institute,Yunnan Agricultural University,
• 出 处: Agricultural Biotechnology
• 发表日期: 2015年01期
• 关键词: chromosomes parental belongs parents evolutionary Chromosome asymmetrical length

Chromosome specimens of sugarcane,Erianthus fulvus and their progenies were prepared with wall degradation hypotonic method to analyze the karyotypes of parents and F1,F2 hybrids. The results showed that most chromosomes of experimental materials are median region( m) chromosomes,while only a small amount of chromosomes are submedian( sm) chromosomes. The karyotype of YAU04 /102 belongs to 2C type,while other materials belong to 2B type. In addition,the karyotypes of hybrids are asymmetrical and the chromosomes of hybrids show an evolutionary trend compared with parental chromosomes.

Chromosome specimens of sugarcane, Erianthus fulvus and their progenies were prepared with wall degradation hypotonic method to analyze the karyotypes of parents and F1, F2 hybrids. The results showed that most chromosomes of experimental materials are median region (m) chromosomes, while only a small amount of chromosomes are submedian (sm) chromosomes. The karyotype of YAU04 / 102 belongs to 2C type, while other materials belong to 2B type. In addition, the karyotypes of hybrids are asymmetrical and the chromosomes of hybrids show an evolutionary trend compared with parental chromosomes.