利用小麦-黑麦的7个附加系为材料，研究了黑麦染色体对籽粒淀粉粒的形成和胚乳细胞数目多少的影响。
By using 7 rye additional wheat lines as materials, the effects of rye chromosomes on wheat seed storage starch development and endosperm cell number were studied.
结果表明，胚性愈伤组织是棉花染色体观察的最佳材料。
The results indicated that embryogenic callus was the best material for observed chromosome.
而单倍体植株是胡萝卜遗传研究的最好材料，由单倍体植株染色体加倍而成的纯合二倍体，又是品种选育的最好资 源。
The haploid plant is the best material for genetic research of carrot, and homozygous diploid formed by doubling chromosome of the haploid plant is also the best resource of breed seed selection.
材料与方法：常规染色体畸变与G _显带核型分析。
MATERIAL and METHODS: Conventional chromosomal aberrations and G-banded karyotype analysis were used.
牡丹的染色体倍数较低且数目较少，是进行多倍体育种的好材料，对其进行多倍体育种是改进其观赏品质、提高其经济价值的有效途径之一。
Peony are good material for polyploid breeding with lower chromosome multiple and less number. polyploid breeding can improve Peony's watches quality and economic value.
1987年和1988年以染色体倍数不同的-15个小麦种为材料，研究不同染色体组成对诱导愈伤组织和分化绿苗的效应。
This study dealt with the effects of chromosome complement on callus induction and differentiation in 15 Triticum species of different Ploidy in 1987-1988.
表明三个特殊类型材料的1 ~ 3条染色体含有黑麦染色体易位片段。
The results indicated that 1-3 chromosomes of the derivatives have the translocated fragments from the chromosome recombination between wheat and rye.
植物单体或双体异附加系是重要的遗传材料，在基因定位、物理图谱构建及染色体工程育种上具有十分重要的作用。
Monosomics and disomics additional lines of plants are the important materials in gene location, physical mapping and chromosome engineering breeding.
植物单体或双体异附加系是重要的遗传材料，在基因定位、物理图谱构建及染色体工程育种上具有十分重要的作用。
Monosomics and disomics additional lines of plants are the important materials in gene location, physical mapping and chromosome engineering breeding.
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