(a.) Produced without sexual union; as, agamic or unfertilized eggs.
(a.) Not having visible organs of reproduction, as flowerless plants; agamous.
Example Sentences:
(1) In agamous-1, stamens to petals; in apetala2-1, sepals to leaves and petals to staminoid petals; in apetala3-1, petals to sepals and stamens to carpels; in pistillata-1, petals to sepals.
(2) The spatial pattern of AGAMOUS expression remains unaltered in superman flowers as compared to wild-type flowers.
(3) To test this, the expression patterns of AGAMOUS and APETALA3 were examined in superman flowers.
(4) The paper is concerned with the first experience of intracavitary gamma-therapy of uterine cancer using the AGAM unit ensuring simultaneous delivery of Cs-137 sources along 3 channels.
(5) Essentially additive phenotypes are observed in superman agamous and superman apetala2 double mutants.
(6) Mutations in the homeotic gene agamous of the plant Arabidopsis cause the transformation of the floral sex organs.
(7) Mutations in the AGAMOUS (AG) gene cause transformations in two adjacent whorls of the Arabidopsis flower.
(8) These phenotypes are consistent with predictions from the genetic model, show that expression of AGAMOUS is sufficient to provide ectopic C function, and demonstrate that the structure of flowers can be manipulated in a predictable manner by altering the expression of a single regulatory gene.
(9) The agamous gene therefore probably encodes a transcription factor that regulates genes determining stamen and carpel development in wild-type flowers.
(10) The predicted products of floral homeotic genes, AGAMOUS (AG) from Arabidopsis thaliana and DEFICIENS A (DEF A) from Antirrhinum majus, have been shown previously to share strong sequence similarity with transcription factors from humans (SRF) and yeast (MCM1).
(11) We propose that the AP1 and AP2 gene products act in concert with the product of the agamous (AG) locus to establish a determinate floral meristem, whereas other homeotic gene products are required for cells to differentiate correctly according to their position.
(12) Similar regions are found in other proteins, such as ARG80, Deficiens and Agamous.
(13) ARG80 and Agamous exhibit similar DNA binding specificities but do not interact with either STE12 or p62TCF.
(14) Five genes with homology to the floral homeotic genes deficiens of Antirrhinum and agamous of Arabidopsis were isolated from tomato.
(15) To test the genetic model, we have generated transgenic tobacco plants that ectopically express the AGAMOUS gene from Brassica napus, which is necessary for the C function.
(16) The second maturation division starts immediately after the completion of the first division and is morphologically similar to agamic mitosis of the micronuclei of D. nasutum.
(17) We characterized the distribution of AGAMOUS (AG) RNA during early flower development in Arabidopsis.
(18) LEAFY expression procedes expression of the homeotic genes AGAMOUS and APETALA3, which specify organ identify within the flower.
(19) Cloning and sequence analysis of agamous suggest that it encodes a protein with a high degree of sequence similarity to the DNA-binding region of transcription factors from yeast and humans and to the product of a homeotic gene from Antirrhinum.
(20) Further, the phenotypes of multiple mutant lines indicate that the wild-type products of the AGAMOUS and APETALA2 genes interact antagonistically.
Asexual
Definition:
(a.) Having no distinct sex; without sexual action; as, asexual reproduction. See Fission and Gemmation.
Example Sentences:
(1) We hypothesize that a dynamic complex of sexual and clonal fishes appear to participate in a feedback process that maintains genetic diversity in both the sexual and asexual components.
(2) Changes in the fitness of harmful mutations may therefore impose a greater long-term disadvantage on asexual populations than those which are sexual.
(3) Secondary echinococcosis generates by asexual regressive metamorphosis of larval element intro larval forms.
(4) However, differences between the two groups were statistically significant only for P. falciparum asexual forms.
(5) The intermediate cells divide asexually by endodyogeny giving rise, on the one hand, to another population of intermediate cells, and on the other--to merozoites which divide no longer.
(6) A concentration of 3 x 10(-9) M halofantrine was lethal to both asexual parasites and gametocytes.
(7) Light is necessary for asexual sporulation in Aspergillus nidulans but will elicit conidiation only if irradiation occurs during a critical period of development.
(8) In the other 17 cases followed up to day 21, six were found again with asexual parasites between day 9 and day 14 and a seventh on day 21.
(9) Improved methods were developed for the determination of reduced glutathione (GSH), glutathione disulfide (GSSG), and protein-glutathione disulfide (PSSG) and applied to determine the glutathione status at various stages of the asexual life cycle for the band strain of Neurospora crassa.
(10) A large variety of fungi are known to produce asexual spores known as arthroconidia.
(11) The selection equations for sexual and asexual reproduction of genotypes corresponding to mixed strategies are analysed.
(12) These results are consistent with genetic data suggesting that stuA gene function is required from the very earliest events of asexual reproduction until completion of conidiophore development, but is not specifically required for differentiation of conidia.
(13) Protoplasts were prepared from asexual spores that harbor one or two mutations in the structural gene for tryptophan synthetase.
(14) They also occurred in the immunocytic systems after the first and during the second asexual multiplication and during the relatively late cystic phase of the parasite in the brain.
(15) Five days after therapy with 600 mg chloroquine base, the asexual parasitemia in the American increased 40-fold, but cleared after treatment with 1,500 mg chloroquine base.
(16) We have tested the effect of 2DG on Candida albicans to see if it could be used to obtain GalK- mutants in this diploid asexual yeast.
(17) (owl monkey) is one of the WHO recommended experimental models for Plasmodium falciparum blood stage infection, especially relevant for vaccination studies with asexual blood stage antigens of this parasite.
(18) Cyclic parthenogens have made the transition to obligate asexuality with high frequency, but there is little evidence to support the argument (Williams, 1975) that such shifts result from the relaxation of the short-term selection pressures supposedly necessary to sustain the sexual phase of the life cycle.
(19) Malaria parasites of the genus Plasmodium spend much of their asexual life cycle inside the erythrocytes of their vertebrate hosts.
(20) We established and analyzed human T lymphocyte clones induced by crude Plasmodium falciparum antigens of schizont-enriched asexual blood stages.