backcross
n.
回[逆]交，回交杂种；
vt.
使回交；
vi.
回交；
变形
复数：backcrosses过去式：backcrossed过去分词：backcrossed现在分词：backcrossing第三人称单数：backcrosses
英英释义
backcross[ 'bækkrɔs ]
v.mate a hybrid of the first generation with one of its parents
权威例句
BackcrossMaps from two interspecific backcross DNA panels available as a community genetic mapping resource
Advanced backcross QTL analysis in a cross between an elite processing line of tomato and its wild relative L. pimpinellifolium
Advanced backcross QTL analysis in tomato. I. Identification of QTLs for traits of agronomic importance from Lycopersicon hirsutum.
Saturated molecular map of the rice genome based on an interspecific backcross population
Advanced backcross QTL analysis: a method for the simultaneous discovery and transfer of valuable QTLs from unadapted germplasm into...
Advanced backcross QTL analysis of tomato. II. Evaluation of near-isogenic lines carrying single-donor introgressions for desirable ...
Using hybrid and backcross larvae of Papilio canadensis and Papilio glaucus to detect induced phytochemical resistance in hybrid p...
A combined RFLP-SSR-AFLP map of tetraploid cotton based on a Gossypium hirsutum x Gossypium barbadense backcross population.
Mapping quantitative trait loci controlling seed dormancy and heading date in rice, Oryza sativa L., using backcross inbred lines
1. 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。
dict.cnki.net
2. 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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3. The variance component of cross and backcross generations of quantitative character controlled by multigenes is studied on condition of chromosome translocation.
研究了染色体易位情况下，多基因控制的数量性状杂交及回交世代的方差组成。
www.dictall.com
4. Molecular marker-assisted selection (MAS) provides a very efficient tool for backcross breeding because it can offer rapid and precise selection of the targeted gene.
分子标记辅助选择技术以其对目标基因快速而精确的选择为回交育种提供了非常有效的工具。
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5. 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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6. Improved CMS line of Wu Ta Tsai was similar to its recurrent parent in economic traits with backcross generation, but it has severe selfed depression.
改良不育系从外部形态上接近轮回亲本，但是随着回交世代的增加衰退现象较为严重。
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7. Doing foreground selection of BC_1F_1 with polymorphic locus, 161 donor segment were detected, and doing background selection and backcross for plants containing donor segment.
利用所筛选的多态性标记对BC_1F_1群体进行前景检测，检测到161个供体片段，并对含有供体片段的单株进行背景选择和回交。
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8. The waxy wheat lines were bred through backcross method using induced waxy wheat line TN-1 and 3 Guangdong local non-waxy wheat cultivar (the recurrent parents).
用3个广东当地非糯小麦品种与引进的糯小麦品系TN-1回交，成功地育成了适合本地种植的糯小麦品系。
cepd.66wen.com
9. 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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10. For this reason, in this type of species such as the silkworm, backcross population is generally used to map dmninant-recessive markers.
由于这个原因，作囤这类物种的遗传连锁图谱通常是使用回交群体。
danci.911cha.com
11. Backcross makes a notable impact eff ection on improving fibre yield and long fibre content.
回交法对提高亚麻出麻率和纤维产量上效果显著。
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12. 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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13. 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。
dict.cnki.net
14. Dose-mortality characteristics of susceptible and resistants parents and their F1 hybrids, F2-backcross progeny and F2 mass cross progeny were assessed in order to determine inheritance character.
同时测定了各自的亲本及其F1杂种、F1对抗性亲本回交和F2混交后代的剂量-死亡率反应曲线，并对它们的结果进行了遗传分析。
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15. The double low variety used backcross male parent for double high GMS, the double low GMS had been bred through continuous backcross, at the same time, the double low hybrid has be en bred.
以现有的双低品种为回交父本，将双高核不育材料转育成双低核不育系，并已配制出了双低杂交种。
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16. Dwarfing-sterile wheat was changed from winterness to springness by continue backcross.
利用连续回交手段将矮败小麦由冬性转育为春性。
chazidian.com
17. So it was difficult to obtain seeds by backcross.
但受精指数仍然较低，很难获得回交种子。
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18. There is no difference among different backcross generations.
不同的回交世代缺绿无差异；
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19. 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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20. Keep the original strains going. After several generations you will need to backcross to one of the previous strains.
必须继续保留原线鱼种，因为经过异种杂交后往往需要原线鱼种做反交。
www.360doc.com
21. 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。
www.ricesci.cn
22. 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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23. The utility of the limited backcross method for improvement of quantitative traits was discussed.
对采用不饱和回交方法改良数量性状进行了讨论。
-- 来源 -- www.chinagene.cn
24. second backcross generation
第二回交子代
-- 来源 -- 英汉 - 翻译参考[网络]
25. reciprocal backcross
相互回交
-- 来源 -- 英汉 - 翻译参考[网络]
26. repeated backcross
重复回交
-- 来源 -- 英汉 - 翻译参考[网络]
27. backcross parent
回交亲本
-- 来源 -- 英汉 - 翻译参考[网络]
28. third backcross generation
第三回交子代
-- 来源 -- 英汉 - 翻译参考[网络]
29. backcross ratio
回交比率
-- 来源 -- 英汉 - 翻译参考[网络]
30. Analysis indicated that the background similarity between the selected lines and backcross parent was90%.
?尘胺治霰砻鳎?醒〉牡ブ暧肼只厍妆镜南嗨瞥潭瓤纱锏
-- 来源 -- dict.cnki.net
backcross
