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  • diploid
  • Ovules are initially composed of diploid maternal tissue, which includes a megasporocyte (a cell that will undergo meiosis to produce megaspores). (wikipedia.org)
  • seeds
  • To solve this problem using a biotechnological approach we aim at the destruction of ovules and/or seeds by directing the expression of a toxic gene using the promoter of an ovule and/or seed specific gene. (upv.es)
  • sperm
  • Published today in Nature Communications , a study by scientists at the Institute for Research in Biomedicine (IRB Barcelona) headed by ICREA researcher Angel R. Nebreda has reported that the protein RingoA is a key regulator of meiosis--the cell division process that gives rise to ovules and sperm for sexual reproduction in mammals. (eurekalert.org)
  • fruits
  • Evaluation of XsMSD gene function based on virus-induced gene silencing (VIGS) indicated that the gene was closely related to early development of the fertilized ovules and fruits. (springer.com)
  • nucellus
  • When mature, the angiosperm ovule consists of a central mass of tissue, the nucellus , surrounded by 1 or 2 protective layers, the integuments , which eventually give rise to the seed coat. (encyclopedia.com)
  • patterns
  • Labeling of pectic arabinan with LM6 antibody and galactan with LM5 antibody revealed abundant amounts of both, with unique distribution patterns in the ovule and premature pericarp. (springer.com)
  • species
  • In both sexual and apomictic species, a zonal differentiation of the integument is characteristic of the ovule. (edu.pl)
  • differentiation
  • 1357 ovules were jointly inoculated in 12 different media of which only 3 appeared to be most suitable for the growth and differentiation of globular proembryos. (springer.com)
  • insert
  • Includes one Ovule insert and one applicator. (riteaid.com)
  • The Liquibeads Ovule Insert superior formula enhances comfort to give you peace of mind and the freedom to act spontaneously. (vitadigest.com)
  • Each Liquibeads Ovule Insert can be discreetly inserted prior to intercourse so that only you will know you are using it. (vitadigest.com)
  • carpel
  • In gymnosperms the ovules are unprotected, whereas in angiosperms they are protected by the megasporophyll (which forms the carpel ). (encyclopedia.com)
  • structure
  • In seed plants, the ovule ("small egg") is the structure that gives rise to and contains the female reproductive cells. (wikipedia.org)
  • The first major evolutionary radiation of seed plants (spermatophytes) occurred in the Famennian of the Late Devonian, when ovules show great diversification in the morphology and structure of integuments and cupules [ 1 - 5 ]. (royalsocietypublishing.org)
  • Expression
  • Quantitative PCR analysis confirmed nearly specific expression in ovule and/or seed of two genes, TRANSPARENT TESTA16 (CcTT16) and TRANSPARENT TESTA7 (CcTT7). (upv.es)
  • formation
  • The evolutionary origin of the inner integument (which is integral to the formation of ovules from megasporangia) has been proposed to be by enclosure of a megasporangium by sterile branches (telomes). (wikipedia.org)
  • below
  • Specifically, it is the part of the pistil which holds the ovule(s) and is located above or below or at the point of connection with the base of the petals and sepals. (wikipedia.org)