近親有性雜交 的英文怎麼說

中文拼音 [jìnqīnyǒuxìngjiāo]
近親有性雜交 英文
close crossing
  • : Ⅰ形容詞1 (空間或時間距離短) near; close 2 (接近) approaching; approximately; close to 3 (親...
  • : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • : Ⅰ形容詞(多種多樣的; 混雜的) miscellaneous; varied; sundry; mixed Ⅱ動詞(混合在一起; 攙雜) mix; blend; mingle
  • : Ⅰ動詞1 (把事物轉移給有關方面) hand over; give up; deliver 2 (到某一時辰或季節) reach (a cert...
  • 近親 : close relative; near relation; flesh and blood; proximity of blood
  • 雜交 : [生物學] hybridize; cross; hybridization; cross breeding
  1. Introduce according to the relevant data, persian cat is in around 16 centurieses, from the himalayas cat and angola cat miscellaneous hand over, lift through several years to breed but grow purely. persian cat ' s figure is bigger, wering grown by the hair and thick and airtight, head circle big, the face is flat even, sum breadth the ear is small, circle the eye snub - nosed tone short breadth, the body feels round and smooth because the hair grows, the arms and legs is thick short soft, the tail is fluffy and bulky, giving person a kind of noblest felling. persian cat ' s pressing is canned is divided into a white, black, red by the hair color ' s dissimilarity, yellow, dark gray, blue, double color, tortoise shell color, miscellaneous color, tiger spot color etc. species. take species of the red as among them valuable

    根據關資料介紹,波斯貓是在16世紀左右,由喜馬拉雅貓和安哥拉貓,經過多年的提純繁殖而培育出來的.波斯貓體形較大,被毛長而且厚密,頭圓大,臉扁平,額寬耳小,圓眼塌鼻口吻短寬,軀體因毛長而感覺渾圓,四肢粗短柔軟,尾蓬鬆粗大,給人一種雍容華貴的感覺.波斯貓按被毛顏色不同可分為白色,黑色,紅色,黃色,暗灰色,藍色,雙色,玳瑁色,色,虎斑色等品種.其中以紅色的品種尤為名貴.波斯貓外表美麗大方,叫聲細小甜美,格溫和,膽大好奇,喜歡與人,善解人意,容易調教,是一種深受人們喜愛的高貴寵物.關波斯貓的起源眾說紛紜,現較統一的說法是在阿富汗土著長毛貓的基礎上,同土耳其或亞美尼亞地區的安哥拉貓培育而成。
  2. Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements

    利用5個具不同纖維品質狀的品種(系)配製完全雙列組合20個,通過本和f1的2年隨機區組試驗發現產量狀的鈴重和衣分與環境的互作效應小,不存在母體效應,並以加遺傳效應為主,分別占表型方差的51 . 2 %和65 . 4 % ;顯遺傳效應所佔的比率也較高,分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大,分別為13 . 3 %和3 . 5 % ,達到了極顯著;鈴重的超優勢為2 . 0 % ,不顯著;衣分為顯著的負值( - 2 . 1 % ) .遺傳分析與種優勢結果一致.具體表現在產量狀上,本相當配製的組合合顯較高,其超優勢正向顯著,而極值本(差異較大)所配組合沒超過高的.這表明本差異小、源關系較本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關,遺傳改良的難度較大
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