双二倍体

The difference in genetics reflected by the above three angle between selfed progenies and original amphidiploid was very small.

自交一代与原生双二倍体在三个层次上表现的遗传差异很小。

The seed set of amphidiploid with DAG genome was ...

具其它组型的双二倍体，则表现结实率较低，但具DAG组型的除外。

Through wide hybridization between wheat and Thinopyrum species, a lot of amphidiploid, addition, substitution and translocation lines were produced and many wheat cultivars were selected.

通过小麦与偃麦草的远缘杂交，创造了大批小麦一偃麦草双二倍体、异附加系、异代换系和易位系材料，选育了许多小麦新品种。

It is proposed the gene is designated as Pm34. A dominant major powdery mildew resistance gene in a BC〓F〓 population, derived from a cross between an amphidiploid of T. durum acc. DR147-Ae. caudate acc. Ae14 and wheat cv. Laizhou953, was identified.

在由硬粒小麦DR147-尾状山羊草Ae14合成的双二倍体与普通小麦品种莱州953杂交衍生的BC〓F〓群体中鉴定了一个显性抗小麦白粉病基因。

A pair of specific primers was designed from the sequenceand was used to amplify the genomic DNAs of Yangmai 5,6VS/6AL line,substitution line of 6V and amphidiploid of Triticum durum-Haynaldiavillosa.

根据该序列设计了一对特异引物，分别以感病对照扬麦5号，抗病6VS/6AL易位系，6V代换系，硬粒小麦-簇毛麦双二倍体及簇毛麦的基因组DNA为模板进行特异性扩增。

Triticum ; Aegilops ; amphidiploid ; seed—set

小麦；山羊草；双二倍体；结实率

The karyotypes and the Giemsa-C banding patterns of Aegilops tauschii (85A-34) and Hordium vulgare (H2) and regenerated plants from embryo callus of hybrids between Ae.tauschii and H.vulgare (2n=28) were confirmed by karyotype analyzing and Giemsa-C banding technique in this study, thus proved that the regenerated plants from embryo callus of hybrids between Ae.tauschii and H.vulgare (2n=28) were spontaneously chromosal doubling amphidiploid.

本研究通过染色体组型分析和Giemsa--C带显带技术，确定了节节麦（85A85A-34）、栽培大麦（H2）、节节麦×大麦杂种胚再生植株(2n=28)的染色体组型和Giemsa--C带核型，证明了节节麦×大麦杂种胚再生植株(2n=28)为自发加倍的节节麦－大麦双二倍体。

A new upland germplasm with the delayed gland morphogenesis trait of G.bickii, ABH-0318, was bred by crossing the amphidiploid of (G.arboreum ×G.bickii)F_1 with an upland cotton germplasm 'Gl_2Gl_2gl_3gl_3' and backcrossing afterward continuously.

用F1双二倍体作母本与陆地棉单节显性系1(Gl2Gl2gl3gl3)进行杂交和连续回交，育成了具有子叶色素腺体延缓形成特性的陆地棉种质系———ABH0318。

We suggest that this gene from amphiploid Am3 most likely belongs to a novel resistance gene, and temporary designated LrPS.

因此，双二倍体小麦Am3携带的隐性抗叶锈病基因可能是一个新的抗病基因，暂定名为LrPS。

The chromosome composition of Yuan Zhong 2, a common wheat-Ag.intermedium partial amphiploid (2n=54), was analyzed with the genomic in situ hybridization,in which the biotinylated total DNA of Ag.intermedium as the probe and the total DNA of common wheat cv.Chinese Spring as blocking DNA were used to hybridize with the chromosome DNA of Yuan Zhong 2 at mitotic metaphase in root tip cells.

为分析普通小麦-天兰冰草部分双二倍体-远中2号(2n=54)的染色体构成，用生物素(biotin-16-dUTP)标记天兰冰草染色体组DNA作为探针，以普通小麦品种中国春染色体组DNA为封闭DNA，与远中2号的有丝分裂中期染色体DNA进行了分子原位杂交。

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。