- polyploid breeding
- 多倍体育种
English-Chinese Dictionary of Agriculture (英汉农业大词典). 2013.
English-Chinese Dictionary of Agriculture (英汉农业大词典). 2013.
Polyploid — This image shows haploid (single), diploid (double), triploid (triple), and tetraploid (quadruple) sets of chromosomes. Triploid and tetraploid chromosomes are examples of polyploidy. Polyploid is a term used to describe cells and organisms… … Wikipedia
evolution — evolutional, adj. evolutionally, adv. /ev euh looh sheuhn/ or, esp. Brit., /ee veuh /, n. 1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane. 2. a product of such development; something… … Universalium
Polyploidy — occurs in cells and organisms when there are more than two homologous sets of chromosomes.Most organisms are normally diploid; polyploidy may occur due to abnormal cell division. It is most commonly found in plants. Haploidy may also occur as a… … Wikipedia
Evolution — This article is about evolution in biology. For other uses, see Evolution (disambiguation). For a generally accessible and less technical introduction to the topic, see Introduction to evolution. Part of a series on … Wikipedia
Jefferson Salamander — Taxobox name = Jefferson Salamander status = VU | status system = IUCN3.1 trend = stable regnum = Animalia divisio = Chordata classis = Lissamphibia ordo = Caudata familia = Ambystomatidae genus = Ambystoma species = A. jeffersonianum binomial =… … Wikipedia
Speciation — Part of a series on Evolutionary Biology … Wikipedia
Ploidy — Haplo redirects here. For the fictional character, see The Death Gate Cycle. For the aquarium fishes, see Haplochromini. Diploid cells have two homologous copies of each chromosome. Ploidy is the number of sets of chromosomes in a biological cell … Wikipedia
Evolución biológica — «Evolución» redirige aquí. Para otras acepciones, véase Evolución (desambiguación). «Evolucionismo» redirige aquí. Para otras acepciones, véase Evolucionismo (desambiguación). Parte de la serie de … Wikipedia Español
Taxonomy of wheat — During 10,000 years of cultivation, numerous forms of wheat have evolved under human selection. This diversity has led to much confusion in the naming of wheats. This article explains how genetic and morphological characteristics of wheat… … Wikipedia
heredity — /heuh red i tee/, n., pl. heredities. Biol. 1. the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new… … Universalium
Stebbins , George Ledyard — (1906–) American geneticist Born in Lawrence, New York, Stebbins studied biology at Harvard where he obtained his PhD in 1931. After working at Colgate University he moved to Berkeley in 1935 and to Davis in 1950, where he established the… … Scientists