由于大多数牧草的多倍性和高度异质特点，牧草遗传连锁图谱的构建相对复杂。
By polyploid nature and high levels of heterozygosity of vast majority pasture plants, it was rather complicated to construct linkage maps of them.
ALAS2的缺失能导致红细胞发育的停滞，ALAS2基因的遗传性突变能引起X-连锁的成高铁红细胞贫血（XLSA）。
The absence of ALAS2 leads to maturation arrest of primitive erythroid cells. Heritable mutations of ALAS2 gene are responsible for the human X-linked sideroblastic anemia (XLSA).
主要组织相容性复合物（MHC）是由紧密连锁的高度多态的基因位点所组成的染色体上的一个遗传区域，它在脊椎动物机体的免疫系统中发挥着非常重要的作用。
MHC is a chromosomal region consisting of a group of closely linked loci which are highly polymorphic, and plays a central role in the immune system.
对于无倒位的家系，利用基因多态性进行遗传连锁分析较为有效可行。
For families without inversions, it is easier and more cost-effective to undertake linkage analysis of genetic polymorphism based on PCR.
化综合征是一种X连锁的隐性遗传病，为男性假两性畸形中最常见的类型。
Testicular feminization syndrome, the most common type of male pseudohermaphroditism, is an X-linked recessive disorder.
利用随机引物对基因组DNA扩增结果表明，NIL -PL0 1和NIL -APL0 1之间多态性差异较小，遗传同质性达98.6 % ，该材料正用于筛选与无花瓣性状紧密连锁的分子标记。
The genomic DNA PCR indicated that the genetic homogeneity between NIL-PL01 and NIL-APL01 reached 98.6%, which were being used in screening the molecular marker linked to apetalous trait.
利用随机引物对基因组DNA扩增结果表明，NIL -PL0 1和NIL -APL0 1之间多态性差异较小，遗传同质性达98.6 % ，该材料正用于筛选与无花瓣性状紧密连锁的分子标记。
The genomic DNA PCR indicated that the genetic homogeneity between NIL-PL01 and NIL-APL01 reached 98.6%, which were being used in screening the molecular marker linked to apetalous trait.
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