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当前位置: 首页 > 文章 > 普通小麦远缘杂交F_1代表现型研究 植物遗传资源学报 2005,6 (4) 377-380+385
Position: Home > Articles > Study on F_1 Phenotype of Wheat Crosses Involving Wild Relatives and Triticale Journal of Plant Genetic Resources 2005,6 (4) 377-380+385

普通小麦远缘杂交F_1代表现型研究

作  者：
袁汉民;王小亮;陈东升;孙建昌;范金萍;张富国;赵桂珍
单  位：
宁夏农林科学院农作物研究所
关键词：
远缘杂交;普通小麦;柱穗山羊草;结实率;性状分离
摘  要：
小麦远缘杂交试验采用常规杂交方法,不进行胚培养,在自然条件下,实现了普通小麦与小黑麦(6X,AABBRR)、柱穗山羊草(2X,DD)、人工合成六倍体小麦(6X,AABBDD)、CIMMYT人工合成小麦(6X,AABBDD)的杂交。发现在F1代中,出现了2~7种植株表现型、7种性状分离现象;小麦颖壳颜色变化可能受多个加性基因控制;杂交F2代结实率较F1代有数倍或十余倍的增长。
译  名：
Study on F_1 Phenotype of Wheat Crosses Involving Wild Relatives and Triticale
作  者：
YUAN Han-min,WANG Xiao-liang,CHEN Dong-sheng,SUN Jian-chang,FAN Jin-ping,ZHANG Fu-guo,ZHAO Gui-zhen(Crop Research Institute,Ningxia Academy of Agriculture and Forestry Sciences,Yongning 750105)
关键词：
Distant hybridization;Triticum aestivum;Aegilops tauschi;Seed setting rate;Character segregation
摘  要：
Using conventional crossing methods under natural conditions,without using embryo culture to rescue hybrid embryos,common wheat(Triticum aestivum L.,2n=6X=42,AABBDD) was crossed with Aegilops tauschii Coss.(2n=2X=14,DD),Persicum-tauschii amphidiploids(2n=6X=42,AABBDD),CIMMYT synthetic wheat(6X,AABBDD derived from crosses between AABB and DD) and Triticale(X.Triticosecale rimpaui Wittm,2n=6X=42,AABBRR),respectively.F_1 progeny plants had two to seven plant phenotypes in each cross combination and up to seven characters were segregating in F_1 generation.For example,chaff color varied greatly among F_1 plants,which suggests there were several genes that control wheat chaff color in these crosses.In addition,the average seed set of the F_2 plants was significantly higher compared with the seed set of F_1 plants.

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