Results 211 to 220 of about 71,235 (256)
Fertility Alteration Characteristics and Cytological Mechanisms of Pollen Abortion in Thermo-Photo-Sensitive Genic Male Sterile Wheat K64S. [PDF]
Plants (Basel)Li H +9 more
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Augmented CENH3 loading is accompanied by transcriptional and epigenetic reprogramming at rice centromeres during meiosis. [PDF]
Genome BiolCao L +13 more
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The formation and function of intercellular bridges in male germlines. [PDF]
Commun BiolCui J, Cheng J, Wu B, He A.
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From chill to bloom: seasonal coordination of reproductive development in peach and temperate fruit trees. [PDF]
J Exp BotVarotto S, Giannino D, Bonghi C.
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Basis of apomixis in flowering plants - state of the art and research perspectives. [PDF]
Plant ReprodSpringer AB, Musiał K.
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Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1977
Abstract The process of meiosis in Lilium falls into four physiological stages - prezygotene, zygotene, pachytene, and post-pachytene. Each of these stages has distinctive metabolic characteristics. Commitment to meiosis occurs during the prezygotene interval at about the time when S-phase replication is completed.
H, Stern, Y, Hotta
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Abstract The process of meiosis in Lilium falls into four physiological stages - prezygotene, zygotene, pachytene, and post-pachytene. Each of these stages has distinctive metabolic characteristics. Commitment to meiosis occurs during the prezygotene interval at about the time when S-phase replication is completed.
H, Stern, Y, Hotta
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Experimental Cell Research, 1967
Abstract The meiotic cells in the anthers of lily and tulip contain a unique histone which is absent or nearly so, from the somatic tissues of these plants. This histone, termed the meiotic histone, is synthesized during the premeiotic histone synthesis, persists through meiosis, microsporogenesis, and pollen maturation.
W F, Sheridan, H, Stern
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Abstract The meiotic cells in the anthers of lily and tulip contain a unique histone which is absent or nearly so, from the somatic tissues of these plants. This histone, termed the meiotic histone, is synthesized during the premeiotic histone synthesis, persists through meiosis, microsporogenesis, and pollen maturation.
W F, Sheridan, H, Stern
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Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1977
Abstract Our understanding of meiosis springs from two suggestions made by Weismann in 1887. One was that meiosis would be found to compensate for fertilization in the life cycles of both sexes and all organisms. The other was that the development of sexual reproduction in evolution depended on the value of meiosis in exposing the ...
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Abstract Our understanding of meiosis springs from two suggestions made by Weismann in 1887. One was that meiosis would be found to compensate for fertilization in the life cycles of both sexes and all organisms. The other was that the development of sexual reproduction in evolution depended on the value of meiosis in exposing the ...
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Journal of Theoretical Biology, 1992
Meiosis is too complex to have arisen at once full blown and a stepwise scheme is proposed for its evolution, where each step is believed to have provided an immediate selective advantage: (1) The first step in this tentative sequence is the development of a haploidization process by means of a rapid series of mitotic non-disjunctions, turned on under ...
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Meiosis is too complex to have arisen at once full blown and a stepwise scheme is proposed for its evolution, where each step is believed to have provided an immediate selective advantage: (1) The first step in this tentative sequence is the development of a haploidization process by means of a rapid series of mitotic non-disjunctions, turned on under ...
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Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1977
Abstract Although exchanges between sister chromatids are common in mitotic cells, those involving homologous chromosomes are rare. Since recombination between homologues is one of the functions of meiosis, it follows that one aspect of the differentiation of the meiocyte involves the synthesis of proteins or enzymes which facilitate ...
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Abstract Although exchanges between sister chromatids are common in mitotic cells, those involving homologous chromosomes are rare. Since recombination between homologues is one of the functions of meiosis, it follows that one aspect of the differentiation of the meiocyte involves the synthesis of proteins or enzymes which facilitate ...
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