backcross
回交
常用释义
英音[ ˈbækˌkrɒs ]
美音[ ˈbækˌkrɔːs ]
变形
复数:
backcrosses
第三人称单数:
backcrosses
现在分词:
backcrossing
过去式:
backcrossed
过去分词:
backcrossed
基本释义
- v. 使（杂种）回交（或逆代杂交）
- n. 回交；逆代杂交；回交子代
例句
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1·The results were verified by backcross inheritance experiment.上述结果通过回交试验得到进一步验证。
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2·The related techniques in backcross breeding were also discussed.对回交育种中的有关技术也进行了讨论。
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3·The method can be conveniently applied to practical backcross breeding programs.该方法可以很方便地应用于实际的回交育种。
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4·Alloplasmic male sterile line 034a was breeded by using method of distant hybridization and backcross.通过萝卜远缘杂交创建不育源，再经过回交转育而选育出异源胞质不育系034a。
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5·Pedigree method, backcross method and convergent cross selection are used widely in dwarf maize breeding.矮生玉米自交系的选育方法主要有系谱法、回交法和聚合选择法。
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6·Both the average number and length of introgressed segments decreased along with the increase of backcross generations.统计分析表明，平均导入片段数和平均导入片段长度均随回交世代的增加而逐渐减少。
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7·The recombination rate of the target traits was higher in backcross generations than in the other segregation generations.总粒数与其它性状相关不显著。 目标性状的重组率以回交后代为高。
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8·Seventeen selected AFLP primer combinations produced 1106 peaks, of which 384 (34.7%) were polymorphic in a backcross family.共得到1106个AFLP位点，其中有384个位点在亲本间有多态性，占总位点的34.7%。
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9·The results had been showed that male sterile lines has 100 percent rate for both the sterile plant and sterile degree in the different backcross generation.研究结果表明，中八叶乌塌菜各回交后代不育株率和不育度均表现为100%，不育系在回交二代时外部形态接近轮回亲本。
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10·No significant differences in studied traits was obssrved among the groups with various genes, controlling erucic acid content(EAC)in the backcross generation.回交世代不同芥酸含量的各组在产量和大多数其他性状上没有明显差异。