Gametophytic翻译
WebStudies of gametophytic SI (GSI) species at a molecular level have identified two completely different S-genes and SI mechanisms. One GSI mechanism, which is found in the Solanaceae, Rosaceae and Scrophulariaceae, has S-RNase as the pistil S-component and an F-box protein as the pollen S-component. However, non-S-locus factors are also … WebGametophytic apomixis (Stebbins, 1950) is a common term for all types of apomixis where the maternal seed embryo develops from the egg cell of a well-developed embryo sac, without fertilization. Gametophytic apomicts are further divided into aposporous and diplosporous species according to the cell that gives rise to the embryo sac (Fig. 1).
Gametophytic翻译
Did you know?
WebSep 15, 2024 · Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and … Web文章通过案例介绍“科组三人行”区域教研模式的构建和实施的操作方式,突出依托区域“学科质量监控系统”,以数据分析精确诊断学校存在的教学问题作为主题.开展针对性的教研组联合教研行动以改进教学.
WebJan 1, 1998 · A major function of the gametophyte generation is to produce haploid gametes. Fusion of the egg cell with the sperm cell gives rise to the sporophyte, thereby completing the life cycle ( Raven et al., 1992 ). In many lower plants, gametophytes are the dominant and free-living generation. Angiosperms, by contrast, have dramatically … Web1) gametophytic blade. 叶状体. 1. Development and differentiation of gametophytic blade cells in Porphyra yezoensis Ueda; 条斑紫菜 叶状体 细胞的发育与分化. 2. Effect of …
WebThey have either a characteristic life cycle of diplohaplontic alternation of gametophytic and sporophytic generations that are isomorphic or heteromorphic, or a diplontic life cycle. Isogamy, anisogamy and oogamy have been recognized as the mode of sexual reproduction. Brown algae are the characteristic group having elaborated multicellular ... WebHomosporous ferns produce sporophytes by intra gametophytic selfing, inter gametophytic mating, or apogamy.Gametangium ontogeny, genetic load, and ploidy affect the mating system of each species.. 摘要同型孢子蕨类的孢子体可经由同配子体自交、异配子体交配两类配 系统或 无配生殖的方式产生，异配子体交配又可分为异配子体自交和异 …
http://www.dictall.com/indu/160/159372911EC.htm
http://faculty.agron.iastate.edu/madan/Gametophytic%20system.pdf stainless steel shower drainWebJan 13, 2024 · Alternation of generations between a sporophytic and gametophytic developmental stage is a feature common to all land plants. This review will discuss the evolutionary origins of these two developmental programs from unicellular eukaryotic progenitors establishing the ability to switch between haploid and diploid states. stainless steel shower caddy tension poleWebadjective. biology specialized uk / ep.ɪˈfɪt.ɪk / us / ep.əˈfɪt̬.ɪk /. relating to a plant that grows on another plant but does not feed from it. （植物）附生的. epiphytic orchids 附生的兰花. … stainless steel shower caddy targetWeb在鲍的繁殖过程中,配子的识别表现出种的特异性,精子顶体泡内的细胞溶素(lysin)可以专一性地在卵黄膜上钻一个孔,精子便从此孔进入与卵细胞相互融合,完成受精.Lysin通过正向选择定律快速进化,而卵膜上的细胞溶素受体(VERL)为lysin的分化提供了选择压力,它是一个自由重复的序列,进行协同进化,这种 ... stainless steel shower drainage channelsWebHaploid gametophytes produce two gametes that fuse and develop into the sporophyte phase of plants. The diploid sporophyte undergoes meiotic division for the generation of spores with half the number of chromosomes and the spores develop into a gametophytic plant body, which in turn generates haploid gametes for sexual reproduction and this … stainless steel shower drain assemblyWebHomosporous ferns produce sporophytes by intra gametophytic selfing, inter gametophytic mating, or apogamy.Gametangium ontogeny, genetic load, and ploidy affect the mating system of each species.. 摘要同型孢子蕨类的孢子体可经由同配子体自交、异配子体交配两类配 系统或以无配生殖的方 产生，异配子体交配又可分为异配子体自交和异 … stainless steel shower eye roomWebgametophyte. (găm′ĕ-tō-fīt) [″ + phyton, plant] In plants, the sexual (gamete-producing) generation that alternates with the asexual (spore-producing) generation. Medical … stainless steel shower head