The results above showed:(1) The cultivars of large-flowered chrysanthemum are widely distributed in Beijing area with plentiful floral types and floral colors;(2) The cultivars with the rare types and colors are urgent for protection;(3) Most of the quantitative characters obeys to the normal distribution,some important traits agreed with skewed distribution.The probability grading can assist quantitative character in establishing new grading standards;(4) Most of qualitative characters is asymmetrical in cultivars,which might be caused by unbalanced differentiation of characters or linkages coming from emphasis characters selection;(5) The floral characters are relatively stable and have comparably large influence on classification,the characters of stipule also have a certain degree of stability and can act as an reasonable supplement for cultivars classification,but the foliar characters have worse stability and can only be recognized as lower level criterion.(6) The genetic relationship among the Flat-petaled group,the Quilled-petal group and the Spoon-petaled group are closest,which followed by the Filiform-petal group because of long-term selection pressure for the specialization of the petal tip loved by most people.The Anemone-petal group has further genetic relationship with these four groups.(7) ISSR molecular marker detection indicates that the proportion of polymorphic loci of lardge-flowered chrysanthemum is higher,in which the Flat-petaled group has the highest genetic diversity level.

綜合以上的研究結(jié)果表明：(1)北京地區(qū)現(xiàn)有大量大菊品種，且花型與花色較為豐富；(2)珍稀花型、花色品種亟需保護(hù)国产专区久久；(3)大部分?jǐn)?shù)量性狀是符合正態(tài)分布的，少數(shù)重點(diǎn)觀賞性狀迫于選擇壓力呈現(xiàn)偏態(tài)分布欧美一区精品在线，概率分級(jí)法能夠輔助大菊的數(shù)量性狀建立新的分級(jí)標(biāo)準(zhǔn)www91免费视频；(4)大部分質(zhì)量性狀在品種群內(nèi)的分布是不均勻的，可能是由菊花性狀遺傳分化的不均衡性或受到選育重點(diǎn)性狀的連鎖作用而造成的操人人操操；(5)大菊花部性狀相對(duì)穩(wěn)定迷晕灌醉在线播放精品，對(duì)品種分類影響較大，其托葉部分也具有一定程度的穩(wěn)定性干人网国内在线视频观看，可以作為品種分類的合理補(bǔ)充亚洲日韩深夜福利第一页，而葉部性狀穩(wěn)定性較差，在品種分類中應(yīng)作為更次一級(jí)的分類依據(jù)欧美精品免费专区在线观看；(6)平瓣類欧美熟女色视频、管瓣類和匙瓣類的親緣關(guān)系最近，畸瓣類品種花瓣先端特化受到人們的喜愛(ài)国内乱人伦中文视频在线，長(zhǎng)期的選擇壓力使其區(qū)別于3種基本瓣型，而這四種瓣型與桂瓣類在親緣關(guān)系上較遠(yuǎn)在线观看免费毛片aaa；(7)ISSR分子標(biāo)記檢測(cè)表明：大菊品種多態(tài)性位點(diǎn)百分率較高国精品视频在线观看，平瓣類品種的遺傳分化最為豐富。

Property 3 (Term-by-Term Differentiation) Suppose that is the sum of a power series on interval ;that is

性質(zhì)3 冪級(jí)數(shù)的和函數(shù)在其收斂區(qū)間內(nèi)可導(dǎo)欧美性交1，且有逐項(xiàng)求導(dǎo)公式

In this study, We used longer DD primers in combination with a two-step PCR protocol to overcome these two problems in term of modified methods of Martin and Pardee.K562 erythroleukemia cell differentiation induced by HEMIN or PMA for 36 hours was used as erythriod or megakaryocytic differentiation model in vitro.Total RNAs were extracted from induced and uninduced K562 cells and were applied to mRNA differential display analysis.

為解決此問(wèn)題国产高清A片在线观看视频，我們參照Martin和Pardee的改進(jìn)方案［3］，建立了一種使用長(zhǎng)引物99欧美午夜一区二区福利视频，進(jìn)行二步PCR的改進(jìn)DDRT-PCR方法日韩在线免费观看视频，以氯高鐵血紅素和肉豆蔻佛波酯誘導(dǎo)K562細(xì)胞36小時(shí)作為體外紅細(xì)胞和巨核細(xì)胞分化模型，取誘導(dǎo)前后的細(xì)胞總RNA進(jìn)行mRNA差異顯示分析日韩成人观看软件免费。

differentiation term by term：逐項(xiàng)微分

differentiation symbol 微分記號(hào) | differentiation term by term 逐項(xiàng)微分 | differentiation theorem 微分定理

term by term differentiation：逐項(xiàng)微分

terephthalonitrile 對(duì)苯二腈 | term by term differentiation 逐項(xiàng)微分 | term by term integration 逐項(xiàng)積分

term by term differentiation (integration)：逐項(xiàng)微分(積分)

項(xiàng) term | 逐項(xiàng)微分(積分) term by term differentiation (integration) | 最后校驗(yàn) terminal check

term by term differentiation; termwise differential：逐項(xiàng)微分

12052,"term","項(xiàng)" | 12053,"term by term differentiation; termwise differential ","逐項(xiàng)微分" | 12054,"term by term integration; termwise integration","逐項(xiàng)積分"