详细信息
EST-CAPS标记在尾叶桉×细叶桉F_1中分离的研究 被引量:2
Segregation of EST-CAPS markers in an interspecific cross of Eucalyptus urophylla×E.tereticornis
文献类型:期刊文献
中文题名:EST-CAPS标记在尾叶桉×细叶桉F_1中分离的研究
英文题名:Segregation of EST-CAPS markers in an interspecific cross of Eucalyptus urophylla×E.tereticornis
作者:张照远[1] 甘四明[1] 李发根[1] 李梅[1] 胡哲森[2]
第一作者:张照远
机构:[1]中国林业科学研究院热带林业研究所;[2]福建农林大学林学院
年份:2007
卷号:27
期号:3
起止页码:493-496
中文期刊名:广西植物
外文期刊名:Guihaia
收录:CSTPCD;;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
基金:国家自然科学基金(30371173);国家"863"计划(2006AA100109);广东省自然科学基金(011386)~~
语种:中文
中文关键词:EST-CAPS;桉树;分离
外文关键词:EST-CAPS; Eucalyptus; segregation
分类号:Q943
摘要:对7个EST-CAPS标记在尾叶桉×细叶桉F1中分离的研究表明:5个EST-CAPS标记呈1∶1的分离,但其中1个偏离孟德尔分离(α=0.05);另外2个EST-CAPS标记呈1∶1∶1∶1的分离,且均符合孟德尔分离。孟德尔正态分离的EST-CAPS标记比例达85.7%,偏分离标记比例为14.3%,表明EST-CAPS标记是一种可靠的遗传标记,可用于桉属树种遗传图谱构建和相关研究。另外,探讨了偏分离的可能原因。
Segregation of EST-CAPS markers was investigated by using an interspecific cross of Eucalyptus urophylla × E. tereticornis Smith and seven ESTs derived from E. tereticornis. The results showed that five EST-CAPS markers had a segregation ratio I : 1 ,four out of which segregated normally at a Mendelian mode (α=0.05) ,while the left two EST-CAPSs segregated 1 : 1 t 1 : 1 at a Medelian inheritance mode. The relatively high ratio of normal segregating EST-CAPS markers (6/7=85.7 %) implies that the marker type could be reliably used as genetic marker in genetic mapping and the related studies in Eucalyptus species. In addition,the possible causes of EST-CAPS segregation distortion were discussed.
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