| 1. | F1 females could be backcrossed to the male homozygous recessive parent .
也可用雌性F1与隐性纯合雄性亲本回交。 |
| 2. | Agronomic characters of many times backcross short - root mutant rice rm
水稻温敏间断失绿性状表达机理的研究 |
| 3. | F1 females could be backcrossed to the male homozygous recessive parent
也可用雌性f1与隐性纯合雄性亲本回交。 |
| 4. | Studies on the hexaploid interspecific hybrid and its backcross with cultivars in strawberry
草莓六倍体种间杂种及其回交研究 |
| 5. | Backcross a cross between an individual and an individual of the original parent generation
回交：杂交产生的子一代个体再与其亲本进行交配的方式。 |
| 6. | Seventeen selected aflp primer combinations produced 1106 peaks , of which 384 ( 34 . 7 % ) were polymorphic in a backcross family
共得到1106个aflp位点，其中有384个位点在亲本间有多态性，占总位点的34 . 7 % 。 |
| 7. | 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
两个物种的重合个体或是那些可育杂种将趋向于与优势种进行回交，因此，经过很多代之后，所得个体会与优势种的亲代相似。 |
| 8. | 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
育种实践证明，选择低纬度地区的夏大豆品种（系）作高蛋白基因源，创造高蛋白中间材料，采用本地丰产材料进行修饰回交，是高蛋白、高产大豆育种的一种有效方法。 |
| 9. | 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培养基上，通过对约80 , 000株m _ 2代幼苗的筛选，共获得352株根仍表现向地性生长或真叶不变为褐色的植株作为可能的突变体。 |
