Sexual differentiation, which is probably determined genetically, involves recognition at the cell surface as well as differences in gamete behavior (one gametangium produces an active "male" gamete, the other a passive "female" gamete). In culture, successful sexual reproduction occurs only when ...
Meiosis produces haploid cells essential for sexual reproduction. In yeast, entry into meiosis activates transcription factors which trigger a transcriptional cascade that results in sequential co-expression of early, middle and late meiotic genes. However, these factors are not conserved, and the factor...
The sexual plasticity of fish gonads declines after the sex differentiation period; however, information about the plasticity of the germ cells themselves after sex differentiation is limited. Using rainbow trout (Oncorhynchus mykiss), we recently established a novel germ cell transplantation system that...
The success of sexual reproduction in mammals depends on segregation of the male sex chromosomes, X and Y, during the cell division process that produces gametes (meiosis). This requires that in male germ cells, the X and Y chromosomes reliably pair and exchange genetic material (1). This pr...
Meiosis is a specialized cell division that produces haploid gametes required for sexual reproduction. During the first meiotic division, homologous chromo... Emma,J,Lawrence,... - 《Journal of Experimental Botany》 被引量: 4发表: 2017年 How to pre-pair chromosomes for meiosis Meiosis is a spe...
The T-DNA tagged mutant gene of Arabidopsis thaliana , mei1 , produces after meiosis an abnormal tetrad, consisting of five to eight microspores of varying... C He,JP Mascarenhas - 《Sexual Plant Reproduction》 被引量: 89发表: 1998年 Genetics of Parthenogenesis in DROSOPHILA MELANOGASTER. I...
Meiosis is an evolutionary conserved mechanism that produces haploid gametes and is essential for the sexual reproduction of higher eukaryotes. Since the l... E Sanchez-Moran,SJ Armstrong - 《Chromosome Research An International Journal on the Molecular Supramolecular & Evolutionary Aspects of Chromosome...
In contrast to animals, the plant male germline is established after meiosis in distinctive haploid structures, termed pollen grains. The germline arises b... N Rotman,A Durbarry,A Wardle,... - 《Current Biology Cb》 被引量: 418发表: 2005年 A Plant Germline-Specific Integrator of Sperm Spe...