tetraploid 中文意思是什麼

tetraploid 解釋
n. 名詞 ,adj. 形容詞 【生物學】四倍體（的）。
n. 名詞 -y ?
  1. In this study, the stem segments of new shoot with axillary buds of well - growth tetraploid black locust trees were used as explants. the effects of different basic mediums, different hormone kinds and their concentrations ratios, different sucrose concentrations on calli induction, buds differentiation and rooting in the process of establishment of high frequency regeneration system of tetraploid black locust were studied. on the base of high frequency regeneration system, the effects of various factors on transformation efficiency of badh mediated by agrobacterium tumefaciens were discussed in the light of gus histochemical assays

    本實驗首先以生長良好的四倍體刺槐優株上當年生新梢的帶腋芽莖段為外植體，研究了在四倍體刺槐高頻再生體系的建立過程中不同基本培養基、不同激素濃度及其配比、不同蔗糖濃度對愈傷組織的誘導、芽的分化及生根的影響；然後在得到高頻再生體系的基礎上，通過農桿菌介導法轉化甜菜堿醛脫氫酶（ badh ）基因，以gus染色組織分析為依據探討了影響轉化效率的各種因素，建立了高效、可重復的基因轉化體系，為四倍體刺槐目的基因的導入打下了基礎。
  2. Zou s, li s, cai w, zhao j, yang h. establishment of fertile tetraploid population of blunt snout bream ( megalobrama amblycephala ). 2003 ’ forum on fishery science and technology, guangzhou, china

    鄒曙明.牙鮃和大菱鮃養殖群體的分子標記和遺傳變異.中國水產學會年會（武漢） （ 2000年3月1日- 4日）
  3. Preliminary study on cross between diploid and tetraploid and cytology of lilium oriental

    四倍體雜交及細胞學研究初報
  4. They are complex polyploids, being partly tetraploid and partly hexaploid.

    它們是復雜的多倍體，其中一部分是四倍體，一部分是六倍體。
  5. Distribution zone of diploid individual are the most extensive in china, while no tetraploid plant is found north of 40 degree north latitude, and hexaploid populations distribute mainly along the changj iang river, is found only in three populations in the yunnan - guzhou plateau. the hexaploid cytotype of var

    4細胞地理學研究表明，二倍體占據我國最廣大區域，而四倍體分佈區的北界則向南遷至40 n ，六倍體主要分佈於25 n - 33 n的狹長地帶，八倍體則在雲貴高原中部及東部邊緣零星分佈。
  6. The oocyte is effectively a tetraploid cell.

    卵母細胞是有效的四倍體細胞。
  7. Two diploid gametes may fuse to give a tetraploid zygote, or gamete may develop directly by parthenogenesis

    兩個二倍體配子融合可能產生一個四倍體合子，這樣的配子也可以通過孤雌生殖直接發育而來。
  8. Through identified, the number of triploid plants was 34, the number of pentaploid plants was 9, and the rest was tetraploid plant ( 328 )

    以32株三倍體和9株五倍體構建了一個種間有性分析群體。
  9. It is extraordinarily important to select tetraploid lines for breeding sugar beet polyploid varieties

    摘要四倍體品系選育是甜菜多倍體育種不可缺少的重要環節。
  10. Laticorymbus might be originated in the yunnan - guzhou plateau, and then migrated southeastwards to the south areas of the chanfjiang river. the tetraploid cytoype of var. scaberulus might originate in eastern china, expanding northwestwards to the yunnan - guzhou plateau and sishun

    寬傘變種6x細胞型起源於雲貴高原，並由西向東傳播，廣佈於長江以南地區，微糙變種4x細胞型在華東地區起源，山東向西擴散至雲貴高原和四川。
  11. Aggregation reproduction in tetraploid pacific oyster, crassostrea gigsa thunberg

    自群繁殖的研究
  12. Regeneration of tetraploid plants with cecropin mb39 gene from ' royal gala ' apple

    蘋果及其四倍體植株的培育
  13. Tissue culture and fast breeding techniques of robinia pseudoacia tetraploid

    四倍體刺槐的組織培養快繁技術研究
  14. In the tetraploid, pseudogamous species rubus nitidioides, haskall selected two plants

    Haskall在四倍體、具假配子的種光懸鉤子中選了二個植株。
  15. Such a gamete may be produced by tetraploid tissues, or it may be the result of faulty meiosis

    這樣的配子可能是通過四倍體組織或者是錯誤的減數分裂產生的。
  16. Since the first tetraploid was obtained in 1939, polyploidy breeding has always been the focus of watermelon breeding

    從1939年獲得第一個四倍體西瓜以來，多倍體育種就一直是西瓜育種的一個熱點。
  17. 2. the gynogenesis of allotetraploid hybrids without the treatment to double the chromosome number, the diploid eggs produced by the females of tetraploid hybrids of red crucian carpx common carp were able to develop to living diploid fish after subjecting to activation of the uv - irradiated sperm

    人工誘導異源四倍體鯽鯉的雌核發育異源四倍體鯽鯉能產生二倍體卵子，用uv處理鏡鯉的精子，不進行染色體的加倍處理，能獲得二倍體雌核發育魚，通過冷休克對「受精卵」進行處理，仍然獲得了二倍體雌核發育魚。
  18. The formation of the population of the allotetraploid hybrids of red crucian carp and common carp is the first case in the world which both the female and the male of allotetraploids are fertile, they are the good materials for studying the biological characteristic of tetraploid animals, this paper reports the hereditary characters of allotetraploids including the stability of hereditary gynogenesis and androgenesis

    異源四倍體鯽鯉是世界上首例人工培育的兩性可育的四倍體魚，這為研究四倍體的生物學特性提供了良好的實驗材料，本文對異源四倍體鯽鯉的遺傳特性進行了研究，主要包括其遺傳穩定性、雌核發育、雄核發育方面的研究。
  19. The hatching rate of the gynogens with the cold shock was higher than that of the untreated gynogens. all the gyngens with and without cold shock were examined to be diploid females with 100 chromosomes, providing the evidence that the females of the tetraploid population are homogamety ( xxx )

    冷休克處理和未冷休克處理的雌核發育魚均是二倍體（ 2n = 100 ）的雌魚，這證明了異源四倍體螂鯉是雌性的性別決定類型屬于xxxx類型。
  20. With the cold shock, the diploid eggs also developed to diploid gynogens after the activation of the uv - irradiated sperm, no tetraploid gynogens being found, suggesting that it is difficult to double the chromosome from the diploid to tetraploid by means of cold shock treatment

    沒有檢測到雌核發育四倍體。這表明通過冷休克讓二倍體卵子加倍成四倍體比較困難，但是經冷休克處理獲得的雌核發育魚的孵化率高於沒有進行冷休克處理的。
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