种性状
- 与 种性状 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Different type idioplasm resources paddy rice adult plant character and paddy rice quality character overall outlineThe birth characteristic, adult plant shape, ear of character of idioplasm resources agronomic characters have the extremely remarkable difference, like weight of a thousand seeds change in 19.67-40.9g, in 18 kind of hull color by brown yellow variety most, in 9 kind of awn colors are most by the achromatic color.
不同类型种质资源水稻植株性状及稻米品质性状的总体概述种质资源水稻的生育特性、植株形态、穗部性状等农艺性状均具有极显著的差异性,如千粒重变化在19.67-40.9g,18种颖壳色中以褐斑黄色样本数最多,9种稃尖色中以无色最多。
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The morphology of M2 and M3 was observed in hothouse and mutants on cotyledon and root of seedling, or embryo of seed were identified. The result showed that there were 8 types of mutative treats on cotyledon, including light-yellow cotyledon, yellowish cotyledon, trump-shaped cotyledon, multilobed cotyledon, non-cotyledon, single-cotyledon, tricotyledon and quadrcotyledon.
M_2和M_3的水培和形态学观察的结果发现,子叶性状出现浅色、黄化、喇叭形、多耳突、无子叶、单子叶、三子叶、四子叶等8种变异类型;根系性状出现短小根、发达根、无侧根和弱向地性等4种变异类型;种胚性状中发现了多胚变异。
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Based on morphological and biological studies, 36character transformation series of 10 species of the genu Apanteles Foerster and 2 species of the genu Dolichogenidea Viereck were recognized. Through analysis of character polarity using the method of outgroup analysis, two and multiple character data matrixe were obtained. The data is analysed through PHYLIP(Phylogeny Inference Package, version 3.6) software based on the method of cladistics, a majority rule consensus tree and a strict consensus tree constructed at last.
在本研究中,描述了10个种,做出了中国绒茧蜂属Apanteles Foerster种类雌蜂检索表,以绒茧蜂属的10个种作为内群,以长颊茧蜂属Dolichogenidea的2个种为外群,基于形态学和生物学分析建立了36个性状演系列,通过外群比较法,得到一个由二性状和多性状数据矩阵,再用phylip(系统发育推断软件3.6版)处理数据矩阵,最后得到一个多数规则合意树和一个严格合意树。
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There are no distinct differences between ancestral character state and descendant character state in some characters. 4. Only one outgroup can't give enough information to tell what the ancestor looks like. It make us not to understand how a lot of charactors evolved. 5. The matsutake group is polyphyletic. 6. The character coding is not precise enough. 7. Some characters are not homology. The result of molecular systematic study on the matstuake group shows the group is not monophyletic. The matsutake group is more closed to Tricholoma than Armillaria. ITS sequence of Catathelasma ventricosum is nearly identical to that of the matsutake group, although apparently they are very different from each other in morphological characters.
对松口蘑群通过形态学特征进行系统发育关系分析造成很大的干扰的原因有:松口蘑的种类大多形态特征比较简单,可提供进行分析的特征不多;某些性状在一些状态之间的反复转化,造成分析上的误差;在进化过程中某些性状无明显的祖征和衍征,在分析过程中很难确定进化极性;选择外群时应该用一个特定类群进行整体理解后,确定各个性状的极性,不要只用单种作为外群;松口蘑群是一个多系群;进行比较的性状不一定是同源的;数量性状编码过于粗放,反映不出真实的情况。
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On the basis of examination of more than 2000 specimens from 15 herbaria worldwide, the characters features of species,phonological phase,ecoloigical habit and the relation to close species were analyzed, recorded and described, the disputed species were compared, measured and counted in detail, the quantitative analysis to different characters was done through dot-map, the variation pattern of major morphology characters was analyzed and their significance for a better delimitation of the species was evaluated.
查阅或借阅国内外17个标本馆近2000份标本,描述了每个种的性状特征、物候期、生态习性及其与近缘种的关系,确定性状的极性,对有争议种的形态性状进行详细的测量和比较,用散点图对个别性状作定量研究,分析了主要外部形态学性状的变异式样、变异幅度及其对划定物种范围的价值。
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In my study, based on morphological and biological studies, 53 character transformation series of 23 species which stand for 23 genera of the Microgastrinae in China respectively and 2 species of Miracinae and Cardichilinae were selected. Through analysis of character polarity using the method of outgroup analysis, two and multiple character data matrixe were obtained. The data is analysed through PHYLIP(Phylogeny Inference Package, version 3.6) software based on the method of cladistics, the consensus cladograms was constructed at last.
本研究以分布在中国东洋区和古北区的小腹茧蜂亚科23个属的23个种作为内群,奇脉茧蜂亚科和折脉茧蜂亚科各一种作为外群,基于形态学和生物学分析建立了53个性状演系列,通过外群比较法,得到一个由二性状和多性状数据矩阵,再用phylip(系统发育推断软件3.6版)处理数据矩阵,最后得到合意树。
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The results showed that some characters, such as shape of leaves and tooth number of leaf-margins, were not taxonomically reliant characters since they varied greatly within the same group; while the characters, such as hairs on leaves, venation of leaves, length and color of flowers or inflorescences, and length of fruits, were good characters for the classification of Stachyurus as they are usually stable.
结果表明:叶片形状、叶缘齿、花序下的叶片是否宿存以及花序是否具花序梗等性状在种间变异非常大,单个性状对旌节花属属下分类意义不大;而叶片毛被、脉序和结构,花序长度,花的大小和颜色以及果实大小等性状通常较稳定,可作为旌节花属划分种和变种的重要依据。
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The results showed that except pods of main inflorescence, the other characters of the sterile and normal cytoplasms had not significant difference by t test. The correlation coefficients of length of main inflorescence, No. of first time branches and glucosinolates between sterile and normal cytoplasms was at 5 percent significant level, but correlation coefficients of the others was not significant. There were positive effects of male sterile cytoplasm on glucosinolates and weight of 1000 seeds, but different effects on the other characters when combinations were different.
结果表明:考察的12个主要性状中,除主序角果数不育胞质杂种F1和可育胞质杂种F1检验差异达5%显著水平外,其余11个性状2种胞质杂种F1上标 t检验差异不显著;主序有效长、第一次分枝数、硫苷等3个性状的可育胞质与不育胞质间线性相关关系显著,其余9个性状的线性相关关系不显著;NEA不育胞质对多数组合的硫苷和千粒重有优良相对效应,对其余性状的相对效应则组合不同正负效应不同。
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Of 12 tomato lines, the analysis on the 4 fruit nourishment quality traits (the contents of vitamin C, total soluble solids and dry matter and ratio of sugar-acid ) was carried out to study the four kinds of disparities, which included the interspecific one, the one between two varieties in the same species , the one between the lines bred by different means in the same variety ,and the one between the different fruit-shaped lines in the same variety .The analytic method of orthogonal comparison of single degree of freedom was applied. The results showed that the line of Lycopersicum pimpinellifolium was better than the average of the lines of L.esculentum in the 4 traits at significant level of 1%, the average of the lines of var.cerasiforme was better than the average of the lines of var.vulgare in the 4 traits at significant level of 5% or 1%,and the two space mutation line(YH02-2 or YH02-6) was better than the average of the other lines of the same variation in the 4 trait, respectively, at significant level of 1%. Of the lines of var.cerasiforme , the lines with pear fruit were lower than the average of the lines with round-shaped or plum-shaped fruits in the 2traits(the contents of vitamin C and total soluble solids), at significant level of 1%,the lines with plum-shaped fruits were higher than the average of the lines with round-shaped fruits, at significant level of 1%,and the lines with yellow-colored fruits(YH02-11) was lower than the average of the lines with red-colored fruits(YH02-1and YH02-7) in the trait of the contents of vitamin C.
对12个品系进行种间、种内变种间、变种内不同选育方式间、变种内不同果实形状间在果实营养品质(果实维生素C含量、可溶性固形物含量、干物质含量和糖酸比)上的差异进行分析,采用统计学上单一自由度正交比较分析法与植物学分类相结合的方法进行分析,结果表明:醋栗番茄种品系YH02-12在4个营养品质性状上,极显著高于普通番茄种品系;樱桃番茄变种品系在4个营养品质性状上的平均水平极显著或显著高于普通番茄变种品系的平均水平;2个空间诱变品系YH02-2、YH02-6在4个营养品质性状上均极显著高于同变种的其他品系的平均水平;樱桃番茄变种品系中,梨形果品系YH02-5、YH02-8的果实维生素C、可溶性固形物含量均极显著地低于樱桃番茄变种中圆形或李形品系的平均水平,李形果品系YH02-9在4个营养品质性状上均极显著地高于圆形果品系的平均水平,黄色圆形果品系YH02-11的果实维生素C偏低于红色圆形果品系YH02-1和YH02-7。
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As PTDT does in threshold traits, PTDT is valid not only for different QTL effect level, but also for maker with multiple alleles and multiple tightly linked markers.(2) Under an appropriate selection ratio s (in this study, s is 0.2, 0.4, 0.6, 0.8, respectively), the power of PTDT can be improved and the genotying individuals can be decreased using selective genotyping design. However, the power of PTDT is related with population size and population structure, an appropriate selection ratio can be defined by simulation based on the existing data.(3) Among the three transforming methods, mixed-family selection is the best, full-sib selection has same power to mixed-family selection in many parameter combinations, and Estimated Breeding Value selection is inferior to them.
数量性状QTL定位的模拟研究结果表明:(1)数量性状经有效转化后,PTDT对数量性状QTL定位保持了阈性状QTL定位的稳健与高效,对不同效应大小的QTL(10%,30%,50%)PTDT都是一个有效的分析方法;(2)在多等位基因标记、多标记方面,PTDT的检验功效与阐性状分析时一样高效;(3)在合适的选择率下(本研究的分别为0.2,0.4,0.6,0.8,1.0),选择性基因型测定不仅可以减少基因型测定的数量,而且可以提高PTDT的检验功效,但选择性基因型测定的PTDT检验功效很大程度上与群体大小和结构有关,这个可根据具体情况通过模拟找到一个合适的选择率;(4)三种转化方法的转化效力结果表明,家系内混合家系选择的转化效力最高,家系内全同胞选择次之,估计育种值选择的转化效力较差。
- 推荐网络例句
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In the United States, chronic alcoholism and hepatitis C are the most common ones.
在美国,慢性酒精中毒,肝炎是最常见的。
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If you have any questions, you can contact me anytime.
如果有任何问题,你可以随时联系我。
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Very pretty, but the airport looks more fascinating The other party wisecracked.
很漂亮,不过停机坪更迷人。那人俏皮地答道。