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backcross 短語和例子【生物學】1.回交,逆代雜交(的產物);回交種...

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Wild arabidopsis thaliana seeds were mutagenized with y - ray , and m2 populations were screened in the medium containing 200mmol / l nacl . 352 potential high - salt - tolerance mutants were selected from 80 , 000 m2 seedlings , and 4 of this m2 mutants showed high - salt - tolerance in their m3 generation . this high - salt - tolerance mutants were backcrossed with the wild type arabidopsis thaliana 在含200mmol lnacl的改良ms培養基上,通過對約80 , 000株m _ 2代幼苗的篩選,共獲得352株根仍表現向地性生長或真葉不變為褐色的植株作為可能的突變體。

The development of these new varieties ( strains ) indicated that using the summer type variety from low latitude area as the high - protein parent , and local high - yield accessions as the recurrent parental lines in modified backcross is an efficient strategy for high - protein , high - yield soybean breeding 育種實踐證明,選擇低緯度地區的夏大豆品種(系)作高蛋白基因源,創造高蛋白中間材料,采用本地豐產材料進行修飾回交,是高蛋白、高產大豆育種的一種有效方法。

Where the ranges of two species overlap , and fertile hybrids can be produced , these hybrids will tend to backcross with the most abundant species , so the offspring down many generations come to resemble the most abundant parents 兩個物種的重合個體或是那些可育雜種將趨向于與優勢種進行回交,因此,經過很多代之后,所得個體會與優勢種的親代相似。

Seventeen selected aflp primer combinations produced 1106 peaks , of which 384 ( 34 . 7 % ) were polymorphic in a backcross family 共得到1106個aflp位點,其中有384個位點在親本間有多態性,占總位點的34 . 7 % 。

Backcross a cross between an individual and an individual of the original parent generation 回交:雜交產生的子一代個體再與其親本進行交配的方式。

Studies on the hexaploid interspecific hybrid and its backcross with cultivars in strawberry 草莓六倍體種間雜種及其回交研究

F1 females could be backcrossed to the male homozygous recessive parent 也可用雌性f1與隱性純合雄性親本回交。

Agronomic characters of many times backcross short - root mutant rice rm 水稻溫敏間斷失綠性狀表達機理的研究

F1 females could be backcrossed to the male homozygous recessive parent . 也可用雌性F1與隱性純合雄性親本回交。