varieties of poplar have been selected for inducing parthenogenesis.
说明激光诱导杨树单性生殖是有效
In this paper, the progresses of research on the natural and artificial parthenogenesis, ameiotic and meiotic parthenogenesis of the silkworm(Bombyx mori) were described in brief.
本文对桑蚕的自然单性生殖、人工单性生殖、减数分裂和非减数分裂的单性生殖发育等研究进展进行了简要地阐述；并指出在遗传学研究和育种中利用完全纯合的品系以及在蚕种生产中应用孤雌生殖技术的重要意义。
These embryos probably originated from the parthenogenesis of some cells in the eight-nucleate embryo sac.
这些胚胎可能是早期８核胚囊珠孔端某个细胞单性生殖引起
This paper presents the results of apomixis research in Enteromorpha linza.
发现缘管浒苔生活史中,配子体进行单性生殖有两种方式:一种是配子体放散的配子不经结合,固着后直接发育成新个体,完成单性生殖;另一种是配子体配子囊中最后一个或几个配子不放散直接在原藻体上发育成新个体。
Through laboratory cultivation and observation,the life history of Ulva linza which includes apomixis,asexual and sexual reproductions was found.
通过实验室培养观察,发现Ulva linza的生活史包括单性生殖、无性生殖和有性生殖三种方式。
a plant that reproduces or is reproduced by apomixis.
单性生殖繁殖或由单性生殖所繁殖的植物。
Asexual reproduction, as by budding, cell division, or parthenogenesis.
无性生殖通过芽接，细胞分裂或单性生殖而形成的无性繁殖
of or related to androgenesis.
雄性单性生殖的或与之相关的。
Parthenogenesis in which the egg is activated by sperm, but without fusion of the egg and sperm nuclei.
雌核生殖一种单性生殖，精子激活卵子，但是卵子和精子核没有融合
Having a single host through the course of the life cycle.
单性生殖的在生命周期过程中只有一个寄主的
Research on Differentially Expressed Genes from the Early Embryos of Parthenogenesis in Silkworm, Bombyx Mori
家蚕单性生殖早期胚胎差异表达基因的研究
Occurring or reproducing without the union of male and female cells; asexual or parthenogenetic.
无性的不经过雄性和雌性细胞结合而产生或繁殖的；无性的或单性生殖的
Under the general term genetic system we include the modes of reproduction of the species (bisexual, thelytokous haploid, etc. )
我们在总遗传系统中包括种的繁殖方式(两性的，产雌单性生殖的，单倍体等)。
Where species form apomictic clones that are very difficult to distinguish from each other, they are termed aggregate species, e.g. bramble (Rubus fruticosus agg.).
从单性生殖系产生的物种极为相似，几乎无法分辨，这被称为复合种。
German-born American physiologist noted for his work on parthenogenesis.
勒布，雅克1859－1924德裔美籍生理学家，以其在单性生殖方面的研究闻名
A female bee, wasp, or other insect that produces fertile eggs without copulating.
单性生殖雌虫雌性蜂、黄蜂或其它不用交配即能产卵的昆虫
Alternation of sexual and parthenogenic generations, as in some aphids.
世代交替双性与单性生殖交替进行，如一些蚜虫中
Characterized by reproduction involving the alternation of sexual and parthenogenetic generations.
世代交替的以涉及双性与单性生殖交替进行为特征的
virginal generation
【生物】单性 [处女] 生殖
experimental parthenogenesis
人工单性[孤雌]生殖
Reproductive Ecology Research on Rare and Endangered Species Kmeria Septentrionalis Dandy;
珍稀濒危植物单性木兰生殖生态学研究
Thank you. Cloning is most simply defined as the asexual reproduction of biological material.
谢谢。克隆最简单的定义是生物原料的无性繁殖。
Conidia are the characteristic asexual reproductive units of fungi.
分生孢子是真菌的特征，无性繁殖的单位。