查询词典 dicots

Convolvulus P. multiflorum P. cuspidatum have the exine stratification considered as typical of the dicots, endexine, foot layer, columellae and tectum.

结果表明：外壁结构分化成两个明显的层次，即外面的外壁外层以及内面的外壁内层，其外壁外层由覆盖层、柱状层和底层组成的。

However, the homology between rape and tobacco is obvious higher than that between rape and rice, probably infering the closer phylogenetic relationship between dicots than that between a dicot and a monocot.

推导的氨基酸序列在三种植物之间的同源性也很高，但总的来看，油菜与烟草之间明显高于油菜与水稻之间的同源性，反映出单、双子叶植物之间亲缘进化关系的不同。

Amino acid sequence alignment and phylogeny analysis revealed that the 6 HbSUT genes could be classified in three subgroups, which were respectively grouped into 3 SUT types of dicots.

在所分析的39种植物SUT基因中，HbSUT基因与同为大戟科的木薯、蓖麻和乳浆大戟SUT基因的同源性最高，反映这些基因的系统进化与物种进化的一致性。

DNA C-values might be one of important indices in the evaluation of angiospermous invasiveness. To test this viewpoint, we compared DNA 1C-values and basic genome sizes in 3,676 angiosperms. The results suggest that:(1) the two nuclear values vary greatly among different groups, e.g., significantly higher in herbs than in trees, in monocots than in dicots, in perennials than in non-perennials;(2) the two nuclear values both have significant effects on plant invasiveness, especially in herbs, dicots, monocots, perennials, non-perennials, diploids, polyploids, Compositae, and Poaceae, while not significant in trees and Fabaceae.

DNA C值与被子植物入侵性密切相关，为考察应用DNA C值评估被子植物入侵性的可靠性和局限性，我们统计分析了全世界范围内3676种被子植物的DNA 1C值（配子未发生DNA复制时的染色体DNA含量）及基因组大小（单个染色体组的DNA 含量），结果表明：1）DNA 1C值和基因组大小在被子植物不同类群中差异极大，例如在草本植物中显著高于木本植物，单子叶植物显著高于双子叶植物，多年生植物显著高于非多年生植物；2）两项指标都与被子植物入侵性显著负相关，尤其是在草本植物、双子叶植物、单子叶植物、多年生植物、非多年生植物、二倍体、多倍体、菊科和禾本科中，然而在木本植物、豆科植物中其与植物入侵性无显著关系。

Cruciferous plants are very important in economic value and theoretical research among the dicots.

十字花科是双子叶植物中一个既有重要经济价值又有理论研究意义的科。

Using nuclear DNA C-values for 539 angiosperms in China, we examined the variation of these values among growth forms and taxonomic groups and the relationship of these values with invasiveness. Mean DNA C-value of the 539 angiosperm species was 4.06 pg. Mean DNA C-value was(1) significantly lower for woody species (1.84 pg) than for herbaceous species(5.02 pg);(2) significantly lower for 360 dicots (2.20 pg) than for 179 monocots (7.80 pg);(3) significantly lower for annuals (2.78 pg) than for perennials(6.65 pg);(4) significantly lower for 134 weed species (1.93 pg) than for herbaceous non-weeds (6.75 pg) and for several families that have an unusually high proportion of weed species;(5) significantly lower for 47 exotic weed species (1.76 pg) than for 134 native weeds (1.93 pg), but significantly lower than that of "non-weedy" herbaceous species (6.75 pg);(6) lower for weeds than for "non-weedy" species in same genus or family; and (7) in herbaceous species, generally lower for weedy compared to "non-weedy" species, with some exceptions such as Avena fatua, whose DNA C-value is as high as 14.15 pg, contrarily, and some "non-weedy" herbaceous species in Cruciferae and Cucurbitaceae with very low values.

统计了中国境内有分布的539种被子植物的DNA C-值，分析了它们在不同分类群、生活型、倍性、生活史类型以及在杂草和非杂草类群中的分布情况，主要结果如下：(1)539种被子植物DNA C-值平均为4.06 pg，其中木本植物的DNA C-值平均为1.84 pg，低于草本植物的平均值(5.02 pg)；(2)双子叶植物(360种)的DNA C-值平均为2.20 pg，极明显地小于单子叶植物(179种)的平均值(7.80 pg)；(3)1年生植物的DNA C-值平均为2.78 pg，明显小于多年植物的平均DNA C-值(6.65 pg)；(4)134种杂草的DNA C-值平均为1.93 pg，明显小于非杂草草本植物的平均值(6.75 pg)，含杂草较多的科，平均DNA C-值相对较小；(5)统计的47种入侵杂草的DNA C-值平均为1.76 pg，略小于134种杂草的平均DNA C-值(1.93 pg)，极显著地小于非杂草性草本植物(6.75 pg)；(6)以科为单位，不同科的DNA C-值存在着极大的差异；(7)DNA C-值与染色体倍性的关系并不明显，但是，随着倍性的增加，基因组变小；(8)在同一科、属中，与非杂草相比，典型杂草的DNA C-值往往偏小；(9)总体上杂草或杂草性强的植物，它们的DNA C-值比非杂草性植物的要小。

Studies on several floral homeotic mutants in dicots, mainly in Arabidopsis, Snapdragan and Petunia, established the ABCDE model for the determination of floral organ identities.

根据对双子叶模式植物拟南芥、金鱼草和矮牵牛遗传突变体的研究，提出了花发育的ABCDE模型。

Studieson the rice reproductive organ mechanisms will be significant in theory and in practice.Now over 70 homeotic genes have been cloned from rice by using the conserved sequencesof the homeotic genes of dicots as probe screening the rice genomic library or cDNA.

属于单子叶植物，是发育分子生物学研究领域中常用的一种模式植物，同时也是世界上最重要的粮食作物之一，其花器官发育的结果直接影响稻谷产量和品质，因此对其花器官发育的研究有着深远的意义。

The galactosyl oligosaccharides of raffinose series are widely distributed in seeds of many species and are localized in tissues that remain viable after desiccation, including the embryo and aleurone layer of cereals, cotyledons and axis tissues of legumes and other dicots.

棉子糖半乳糖苷系列寡糖广泛分布在许多种植物种子中，并存在于干燥后仍能保持活力的组织内，如禾谷类种子的胚及糊粉层，豆类及其他双子叶植物的子叶和胚轴组织等。棉子糖半乳糖苷系列寡糖在禾谷类种子的非自溶性中央胚乳中不合成，但存在于蓖麻种子的自溶性胚乳细胞中。

These large differences were predominantly caused by differences in numbers of annual dicots and perennial, mainly woodland dicots while the higher total species numbers in the Netherlands were mainly the result of an increase in all annual species.

这些大的差异主要是所造成的差异，在人数每年双子叶植物和多年生，林地主要是双子叶植物，而高占总种数的数目，在荷兰，主要是由于增加了，每年都种。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。