单词 | agamospermous |
释义 | agamospermousadj. Botany. Characterized by asexual reproduction in which seeds are produced from unfertilized ovules; exhibiting agamospermy. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > types of reproduction > [adjective] > others gemmiparous1793 gemmiferous1804 agamic1816 zoogenic1842 agamogenetic1858 autogenetic1859 parthenogenetic1860 parthenogenous1869 unsexual1873 monogenous1874 monogonic1876 monogonous1876 arrenotokous1877 gemmative1877 thelytokous1877 parthenogenic1878 heteroblastic1888 blastogenic1889 isogamous1889 paedogenetic1889 monogenic1890 anisogamous1891 monogenetic1900 paedogamous1912 apomictic1913 cytogamous1918 ectogenetic1923 pseudogamous1932 agamospermous1933 impaternate1934 subsexual1937 mictic1950 somatogamous1950 zygogenetic1950 1933 Hereditas 17 146 Poa alpina represents an exception to this rule, as it comprises both sexual and agamospermous biotypes. 1946 Hereditas 32 9 In several agamospermous genera meiosis gets replaced by mitosis also under normal conditions. 1970 Watsonia 8 143 The low and variable pollen fertility of P. anserina is unusual for a species which reproduces sexually and is not agamospermous. 2000 K. E. Holsinger in F. J. Ayala et al. Variation & Evol. in Plants & Microorganisms xv. 282 In flowering plants, for example, agamospermous reproduction..is almost invariably associated with polyploidy. This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021). < adj.1933 |
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