遺傳優勢 的英文怎麼說

中文拼音 [yízhuànyōushì]
遺傳優勢 英文
genetic dominance
  • 遺 : 遺動詞[書面語] （贈與） offer as a gift; make a present of sth : 遺之千金 present sb with a gener...
  • 傳 : 傳名詞1 （解釋經文的著作） commentaries on classics 2 （傳記） biography 3 （敘述歷史故事的作品）...
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  • 遺傳 : [生物學] heredity; hereditary; inheritance; inherit
  1. The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed

    較好地解決多阻尼比反應譜擬合問題；本文方法通過一次運行就能獲得一組具有集系特性的地震動，在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢，產生的人造波或人造波集系可滿足工程抗震設計需要；在遺傳演算法中，交叉概率和變異概率是影響收斂速度的重要參數，本文採用的改進自適應交叉概率和變異概率，可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率，以保證演算法始終以較好的速度向pareto最優解集逼近。
  2. Epistasis and genotype x environment interaction exist universally and have been testified by a lot of researches. these effects play an important role in inheritance, evolution and heterosis in plants

    上位性和基因型環境互作存在的普遍性利它們在植物遺傳、進化和雜樸優勢中的重要作用已為大量研究所證實。
  3. Genetic analysis of heterosis for hybrid tulip tree

    雜種馬褂木雜種優勢的遺傳分析
  4. Analysis of heterosis and heredity of main characters in winter wheat

    冬小麥主要性狀的雜種優勢測定和遺傳分析
  5. Genetic effects and heterosis analysis for yield and quality traits in kenaf hibiscus cannabinus l

    紅麻產量和纖維品質性狀的遺傳效應與雜種優勢分析
  6. Because the genetic distances of yungui indica and south china indica were bigger than those of all other ecotypes, they sere grouped into the heterotic ecotypes of indica rice

    由於雲貴秈和華南秈與其它生態型之間的遺傳距離均較大，故初步將其確定為秈型水稻優勢生態型。
  7. It is very important to estimate the basic parameters in helicopter preliminary design. neural network ( nn ) has the advantages in estimating accuracy and generalization over traditional methods. however, there are some difficulties in using nn, e. g., how to select a proper network structure and the number of hidden layers. in this paper, structure and connection weight of a three - layer nn are optimized by genetic algorithm, and the optimized network is applied to helicopter sizing. the proposed method can not only give an optimal nn structure and connection weight, but also reduce the prediction error and has the capability of self - learning when the latest data are available. furthermore, this method can be easily applied to helicopter design systems

    在直升機初步設計階段估算其基本參數是很重要的.神經網路的通用性和精度比傳統的估算方法有更多的優勢，但是在應用神經網路時存在如何選擇合適的網路結構和隱層節點數目等一些困難.應用遺傳演算法優化三層神經網路結構和連接權重，並將優化得到的網路應用於直升機參數選擇中.該方法不但可以給出一個最優的神經網路結構和連接權重，而且降低了估算誤差，具有及時應用最新數據學習的能力.此外，該方法易於在直升機設計系統中得到應用
  8. Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements

    利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大
  9. As the important index in the study of human population genetics, tongue moving types and behavioral traits of lateral functional dominance are correlative with genomic factors

    舌運動類型特徵和一側優勢功能特徵與遺傳因素有關，是人類群體遺傳學研究的重要指標之一，目前多數特徵的遺傳方式尚未確定。
  10. Selection of dominant populus euphratica oliv. and construction of its genetic markers in tarim river section with low groundwater

    塔里木河流域低地下水位區優勢胡楊品種的篩選及其遺傳標記的構建
  11. Monte carlo simulations were conducted to study the new approaches of qtl mapping, the results indicated that general least squares ( gls ) method, which was widely applied in mixed linear model, could unbiasedly estimate all genetic main effects, including additive effects, dominance effects and epistatic effects of additive by additive, additive by dominance, dominance by additive, dominance by dominance. the interaction effects between genetic main effects and environments could also be predicted unbiasedly by linear unbiased prediction ( lup ). the heterosis prediction based on qtl effects was also unbiased

    對新提出的qtl分析方法進行了montecarlo模擬研究，結果表明，廣泛應用於混合線性模型的廣義最小二乘法（ gls ）能夠無偏估計加性效應，顯性效應以及加加、加顯、顯加、顯顯上位性效應等各項遺傳主效應；運用線性無偏預測法（ lup ）能夠無偏預測上述各項遺傳主效應與環境的互作效應；基於qtl效應的雜種優勢預測也是無偏的。
  12. Correlation between genetic distance and yield heterosis of hybrid aromatic rice

    雜交香稻親本遺傳距離與產量雜種優勢的相關性研究
  13. Genetic distance detected with rapd markers among rice cultivars oryz a sativa l. and its relation to heterosis

    分子標記水稻遺傳距離及其與雜種優勢的關系
  14. Analysis on population genetic variation and its correlation to heterosis of body weight using microsatellite dna markers in yellow plumage broilers

    黃羽肉雞群體遺傳變異的微衛星分析及其與體重雜種優勢的關系
  15. Effect of relation on heterosis and genetic abilities of plant height in wheat

    輻射對冬小麥株高構成因素雜種優勢和遺傳力的影響
  16. The re suits show the present method is more accurate and reliable than other methods

    分析結果表明，在搜索斜坡滑裂面問題上遺傳進化演算法較其它搜索演算法具有準確性和可靠性的優勢。
  17. They can pass on the gene to their children and have no symptoms of disease themselves, and the single copy of the founder mutation gives the carrier an advantage in the struggle for survival

    攜帶者能將突變基因遺傳給他們的孩子，本人卻不會表現出任何疾病癥狀，但是這一個創始者突變基因，卻可以讓他們在遇到困境時擁有生存優勢。
  18. " we were surprised to find such high evolutionary conservation of the structure, expression and function of these proteins - called integrin and basigin - between flies and mammals, whose ancestors diverged over 500 million years ago, " said dr

    生物谷報道：果蠅是最常用的模式生物之一，它最大的優勢在於基因組已研究清楚，而且易作于遺傳性操作，因為作為研究疾病機制的重要手段之一。
  19. Population genetic structure was studied using rapd analysis to reveal the relationship between the genetic variations and heterosis

    同時採用rapd技術對f1代不同群體的遺傳結構進行比較，研究群體內的遺傳變異與雜種優勢的關系。
  20. The numerical solutions show the integer - coded ga is effective. when number of the discrete value between representation for binary coding and in discrete list ca n ' t be corresponded by one - to - one, integer coding is predominant, and better solutions are achieved under the same parameters. in chapter 5, ga is applied to configuration optimization of truss with mixed variables and topology optimization of truss with singularity

    通過算例表明，整數編碼的遺傳演算法是有效的，而且在二進制編碼所能表示的離散值個數與變量的可選離散值數目不能一一對應大連理工大學博士學位論文一時，整數編碼顯示了它的優勢，在相同的控制參數下，能夠得到比二進制編碼更優的結果。
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