用GGE双标图分析甘蔗品种性状稳定性及试点代表性

算术平均法经常被用于评估甘蔗品种产量的稳定性和适应性，并用方差分析来估计区域试验的试验误差.然而，地点和年份的差异使品种的差异难以得到准确评估.为客观评价甘蔗品种的稳定性和适应性，本研究采用GGE双标图对2008-2009年我国甘蔗区域试验5个试点中的7个甘蔗品种试验数据进行分析.结果表明： 福农30号为蔗茎产量高且稳产性高的品种，粤甘18号为含糖量高且性状稳定的品种，福农28号和云蔗99 91为高蔗糖分且性状稳定的品种，粤甘16号的蔗茎产量和含糖量最高，但稳定性一般；在各试点中，福建漳州和广东遂溪的代表性和鉴别力较强.GGE双标图分析为客观评价甘蔗参试品种的丰产性和稳定性提供了直观、有效的手段，为甘蔗新品种的鉴定与推广提供了科学依据.

ISSR marker and its applications in analyzing animal genetic structure: A review

Inter-simple sequence repeat (ISSR) marker technology has become a hotspot in DNA molecular technology in recent years, and plays an important role in genetic research. However, this technology is still at an initial stage in animal research, compared with its applications in plant research. This paper introduced the principles and main methods of ISSR marker technology, and summarized its applications in analyzing the genetic structure of animals, such as genetic diversity, resources identification, and genetic relationship, etc. The application prospects of this technology were also discussed, aimed to provide reference for the further applications of this technology in animal research.