同源四倍体

基本解释 (translations)

autotetraploid

与同源四倍体相关的网络例句 [注：此内容来源于网络，仅供参考]

But the abnormal phenomena in autotetraploid rice were more than that in diploid rice.

同源四倍体水稻胚囊发育过程与二倍体基本一致，但在同源四倍体水稻胚囊的形成和发育过程中出现了较多的异常现象。

All these contributed to the genetic selection and improvement in rice breeding. As mentioned above, the results are not only helpful to promote the process ofrice improvement, but also to confirm the basic for further study of autotetraploid rice.

上述产量、品质性状及遗传差异分析的结果，不仅有利于加快同源四倍体水稻的遗传改良进程，而且为进一步研究、利用同源四倍体水稻奠定了初步基础。

Study on the pollen fertility and the process of pollen formation and development in autotetraploid rice showed that the pollen fertility was high (78.33%), though many abnormities appeared in this process.

通过对5个品种的同源四倍体水稻花粉发育过程和13 个品种的花粉育性调查结果表明，同源四倍体花粉平均育性为78.33%，明显比二倍体（91.85%）低。

Along with rapid development of bio-technology, artificial chromosome doubling in vitro is the efficiency approach of producing polyploidy plants. Advances on in vitro induction of autotetraploid in plants was reviewed.

随着生物技术的迅速发展，通过植物离体组织人工诱导多倍体已经成为获得多倍体植株的有效途径，本文就植物离体组织染色体加倍诱导同源四倍体的研究进展做一介绍。

The structure and expression pattern of each storage protein was investigated using one-dimensional SDS-PAGE. Our results showed that the protein content of each fraction in endosperm of autotetraploid rice line is mostly higher than that of its corresponding diploid rice line.

结果表明：同源四倍体水稻胚乳蛋白各组分含量与相应的二倍体相比，大部分呈增加趋势；同源四倍体水稻胚乳蛋白的亚基类型与相应的二倍体水稻基本一致，仅在全蛋白电泳和清、球蛋白电泳中各发现1条差异条带。

In the crosses of the autotetraploidy rices used as the females, some seeds could be got, but more seeds were obtained in these crosses by the special treatment that the DH solution was put into the caryopses before the pollination.

在以同源四倍体水稻为杂交母本的杂交组合中，可以获得一些实粒种子，但是，如果在授粉前利用DH溶液对同源四倍体水稻的去雄颖花进行处理后再授狼尾草的花粉粒则能获得更多的实粒种子。

Results showed that the PMC meiosis of autotetraploid was similar to the diploid except some particularities. In metaphase Ⅰ, multivalent, quadrivalent, trivalent, bivalent and univalent were observed and some of the chromosomes were found not to rank on the metaphase plate and so did in metaphase Ⅱ cells. In anaphase Ⅰ and anaphase Ⅱ cells, there were lagging chromosomes, chromosome bridge and fragment. During anaphase Ⅱ and telophase Ⅱ, chromosome segregation was not synchronous or equal. At tetrad stage, dyad, triad, tetrad with micronucleus and polyad appeared.

结果表明，同源四倍体花粉母细胞减数分裂过程与二倍体相比，中期Ⅰ染色体构型复杂，有多价体、四价体、三价体、二价体和单价体；中期Ⅰ及中期Ⅱ有部分染色体没有排列在赤道板上；后期Ⅰ及后期Ⅱ出现落后染色体、染色体桥及断片；后期Ⅱ和末期Ⅱ有染色体不同步分离及不等分裂的现象；四分体时期还出现二分体、三分体、含微核的异常四分体及多分体。

Since F3, the tetraploidy was maintained from one generation to another and to date FH allotetraploid hybrids were producedF:!

四倍体鱼不但兼有父母本的扩增带，而且也有变异，为四倍体鱼是异源四倍体而不是同源四倍体提供了分子生物学证据。

Monosomic 3, monosomic 5, monosomic 10, trisomic 4 and trisomic 5 as experiment materials, their meiosis behavior of pollen mother cell, pollen characteristics, physiological and biochemical characteristics of anther, section observation of pollen development and the structure of embryo sac were studied, and the effects on the seed set and transmission rate were analyzed.

本文以大白菜同源四倍体小孢子培养产生的且已鉴定为3号单体、5号单体、10号单体、4号初级三体、5号初级三体的非整倍体株系及二倍体株系等为试材，对各材料的结籽率、雄配子传递率进行了统计，并对花粉母细胞减数分裂行为、花粉特性、花粉发育和胚囊结构以及花药生理生化特性等方面进行了观察研究，进而分析了其对大白菜单体n-1雄配子和三体n+1雄配子传递率的影响。

In order to explain clearly the variation status of embryo from tetrapoid Robinia pseudoacacia and fully use the variation resource initiated in the sexual reproduction of TRP in the further improvement of TRP, the classification and vitalities of seed embryos from tetraploid Robinia pseudoacacia were studied. The main results are as follow. According to the cotyledon number, color and plumpness, the seed embryos of TRP could be divided into 5 types: YVT (yellow, very replete,2 cotyledons), YMT( yellow, more replete,3 cotyledons ), YRF ( yellow, replete,4 cotyledons ), GNT ( green, no-replete, 2 cotyledons ) and WNT ( white, no-replete, 2 cotyledons ).

为了阐明刺槐同源四倍体种子胚变异状况及充分利用刺槐同源四倍体有性过程创造的变异资源对四倍体刺槐进行遗传改良，研究了刺槐同源四倍体种子胚类型及其生活力特征，主要结论如下：刺槐同源四倍体种子胚按照子叶数量、颜色及饱满程度，可以划分出5个类型：黄二、黄三、黄四、绿二及白二，所有类型种子胚混合平均单胚重量接近二倍体的1/2。

与同源四倍体相关的网络解释 [注：此内容来源于网络，仅供参考]

autotetraploid：同源四倍体

二倍体材料经过秋永仙碱处理后,一些材料细胞的染色体全部加倍,成为同源四倍体(autotetraploid);一些材料二倍体与四倍体细胞并存出现嵌合体(cytochimaeras)现象;一些材料二倍体、四倍体细胞以及更高倍性的细胞混合而形成混倍体.

autotetraploid：同源四倍体(由二倍体生物的自身染色体组重复形成)

autotest | 自动检测程序 | autotetraploid | 同源四倍体(由二倍体生物的自身染色体组重复形成) | autotetraploidy | 同源四倍性

autotetraploidy：同源四倍性

autoteraploid同源四倍体 | autotetraploidy同源四倍性 | autotitrator自动滴定仪

autotherapy：自疗 自体疗法

autotetraploid同源四倍体 | autotherapy自疗 自体疗法 | autothermicpiston热自动补偿活塞 防热变形活塞

autosyndetic pairing：同源配对

autosynapsis同源联会 | autosyndetic pairing同源配对 | autoteraploid同源四倍体

Tetraploid breeding：四倍体育种

快速繁殖:Tetraploid | 四倍体育种:Tetraploid breeding | 同源四倍体:homologous tetraploid

homologous tetraploid：同源四倍体

四倍体育种:Tetraploid breeding | 同源四倍体:homologous tetraploid | 四倍体小麦:tetraploid wheats

tetraploid wheats：四倍体小麦

同源四倍体:homologous tetraploid | 四倍体小麦:tetraploid wheats | 东亚飞蝗:Locust migratoria L.

autosyndesis：同源联会,同亲联会

autosynapsis 同源联会,同亲联会 | autosyndesis 同源联会,同亲联会 | autotetraploid 同源四倍体

Cucurbita maxima：西葫芦

例如二倍体的西葫芦(Cucurbita maxima)本来结梨形果实,成为同源四倍体以后,所结果实却变成扁圆形的.同源四倍体某一同源组的杂合基因型不外乎三种:三式(AAAa) 复式(AAaa)或单式(Aaaa).