MATRILINEAL, a sperm-specific phospholipase, triggers maize
... systems are rare in nature3 and difficult to manage in breeding programmes4. The multi-billion-dollar maize hybrid seed business, however, is supported by industrial doubled haploid pipelines using intraspecific crosses to in vivo haploid inducer males derived from Stock 6, first reported in 1959 (r ...
... systems are rare in nature3 and difficult to manage in breeding programmes4. The multi-billion-dollar maize hybrid seed business, however, is supported by industrial doubled haploid pipelines using intraspecific crosses to in vivo haploid inducer males derived from Stock 6, first reported in 1959 (r ...
Two Classes of sir3 Mutants Enhance the sir1
... DNA replication, however, so the mechanistic significance of the Sir1p-Orc1p interaction is not yet understood. Sir3p is a key component of silent chromatin (reviewed in Stone and Pillus 1998). It is an integral subunit of the multiprotein complex that functions at the silent mating-type loci and at ...
... DNA replication, however, so the mechanistic significance of the Sir1p-Orc1p interaction is not yet understood. Sir3p is a key component of silent chromatin (reviewed in Stone and Pillus 1998). It is an integral subunit of the multiprotein complex that functions at the silent mating-type loci and at ...
Mechanisms of endosperm initiation | SpringerLink
... Central cell maturation and mitotic repression The CC comprises the bulk of the FG with a large central vacuole and cytoplasmic volume at maturity. During maturation, the PN migrate towards the CC micropylar pole into a position adjacent to the egg cell nucleus (Fig. 1a). In Arabidopsis and other di ...
... Central cell maturation and mitotic repression The CC comprises the bulk of the FG with a large central vacuole and cytoplasmic volume at maturity. During maturation, the PN migrate towards the CC micropylar pole into a position adjacent to the egg cell nucleus (Fig. 1a). In Arabidopsis and other di ...
Number 48, 2001 35
... molecule of the proposed processive enzyme (Selker 1990 Annu. Rev. Genet. 24: 597-613) could mutagenize large stretches of duplicated DNA. A theoretical possibility of testing the ‘titration hypothesis’ would be to construct a strain having a large duplication, which does not cover any essential gen ...
... molecule of the proposed processive enzyme (Selker 1990 Annu. Rev. Genet. 24: 597-613) could mutagenize large stretches of duplicated DNA. A theoretical possibility of testing the ‘titration hypothesis’ would be to construct a strain having a large duplication, which does not cover any essential gen ...
Chromosomes in Saccharomyces cerevisiae
... could reflect the shorter overall size of the artificial chromosome, the smaller separation between its centromere and telomeres, or the presence on natural chromosomes of previously unidentified specialized sequences that are required for accurate chromosome segregation. We examined the role of tel ...
... could reflect the shorter overall size of the artificial chromosome, the smaller separation between its centromere and telomeres, or the presence on natural chromosomes of previously unidentified specialized sequences that are required for accurate chromosome segregation. We examined the role of tel ...
Evolution of alternative biosynthetic pathways for vitamin C following
... ascorbate biosynthesis. A multiple sequence alignment of 263 amino acid residues was used with alditol oxidases from the vanillyl alcohol oxidase (VAO) family acting as the outgroup. Photosynthetic organisms are shown in green. Figure 3. continued on next page ...
... ascorbate biosynthesis. A multiple sequence alignment of 263 amino acid residues was used with alditol oxidases from the vanillyl alcohol oxidase (VAO) family acting as the outgroup. Photosynthetic organisms are shown in green. Figure 3. continued on next page ...
p53, the Cellular Gatekeeper Review for Growth and Division
... Princeton University Princeton, New Jersey 08544 ...
... Princeton University Princeton, New Jersey 08544 ...
The amelogenin gene
... is a major protein constituent of the developing enamel matrix. This protein is now well characterized from the data of amino acid sequences which have been shown to be at a high degree of homology between all species investigated to date. The gene structure of this protein has been demonstrated and ...
... is a major protein constituent of the developing enamel matrix. This protein is now well characterized from the data of amino acid sequences which have been shown to be at a high degree of homology between all species investigated to date. The gene structure of this protein has been demonstrated and ...
`Candidatus Phytoplasma mali`, `Candidatus Phytoplasma pyri` and
... Spiroplasma Working Team – Phytoplasma taxonomy group, 2004). According to these recommendations, ‘a phytoplasma can be described as a novel ‘Candidatus Phytoplasma’ species if its 16S rDNA sequence has <97?5 % similarity to that of any previously described ‘Candidatus Phytoplasma’ species’. In case ...
... Spiroplasma Working Team – Phytoplasma taxonomy group, 2004). According to these recommendations, ‘a phytoplasma can be described as a novel ‘Candidatus Phytoplasma’ species if its 16S rDNA sequence has <97?5 % similarity to that of any previously described ‘Candidatus Phytoplasma’ species’. In case ...
Tutorial - QIAGEN Bioinformatics
... Figure 19: Complete workflow for bisulfite sequencing in the graphical editor view. Notice that the workflow contains twice the tool for calling differential methylation to conduct the reciprocal analysis of methylation, so that both hyper- and hypo-methylated regions can be identified in one workfl ...
... Figure 19: Complete workflow for bisulfite sequencing in the graphical editor view. Notice that the workflow contains twice the tool for calling differential methylation to conduct the reciprocal analysis of methylation, so that both hyper- and hypo-methylated regions can be identified in one workfl ...
... I n view of the complete absence of the conditions necessary for a determination of the occurrence of dominance versus intermediacy of size factors in their heterozygous phase it is regrettable that one can read in certain recent papers of RICHEY(1945) and others that the cumulative effects of domin ...
A mixed group ll/group III twintron in the Euglena
... gracilis chloroplast ribosomal protein S3 gene (rps3) was examined by cDNA cloning and sequencing, and northern hybridization. Based on the characterization of a partially spliced pre-mRNA, the intron was characterized as a 'mixed' twintron, composed of a 311 nucleotide group II intron internal to a ...
... gracilis chloroplast ribosomal protein S3 gene (rps3) was examined by cDNA cloning and sequencing, and northern hybridization. Based on the characterization of a partially spliced pre-mRNA, the intron was characterized as a 'mixed' twintron, composed of a 311 nucleotide group II intron internal to a ...
Plant adenosine 59-phosphosulphate reductase: the past, the
... dependent pathway of plant sulphate assimilation was never excluded, especially when the purification of PAPS reductase from spinach had been reported (Schwenn, 1989). In attempts to clone plant APS and/or PAPS reducing enzyme(s) by complementation of E. coli mutants deficient in cysH, three differe ...
... dependent pathway of plant sulphate assimilation was never excluded, especially when the purification of PAPS reductase from spinach had been reported (Schwenn, 1989). In attempts to clone plant APS and/or PAPS reducing enzyme(s) by complementation of E. coli mutants deficient in cysH, three differe ...
Effect of the allelic variants of aldehyde
... Abstract Alcoholism is a complex behavioural disorder. Molecular genetics studies have identified numerous candidate genes associated with alcoholism. It is crucial to verify the disease susceptibility genes by correlating the pinpointed allelic variations to the causal phenotypes. Alcohol dehydroge ...
... Abstract Alcoholism is a complex behavioural disorder. Molecular genetics studies have identified numerous candidate genes associated with alcoholism. It is crucial to verify the disease susceptibility genes by correlating the pinpointed allelic variations to the causal phenotypes. Alcohol dehydroge ...
"RNA Interference in Caenorhabditis elegans".
... specified by a total of only 1000 somatic cells. Due to the highly stereotyped celldivision patterns, the origins and fates of each cell in the embryo and adult are known (Sulston and Horvitz, 1977; Sulston et al., 1983). Consequently, perturbations of the developmental program can be traced to cha ...
... specified by a total of only 1000 somatic cells. Due to the highly stereotyped celldivision patterns, the origins and fates of each cell in the embryo and adult are known (Sulston and Horvitz, 1977; Sulston et al., 1983). Consequently, perturbations of the developmental program can be traced to cha ...
one-step and stepwise magnification of a bobbed lethal
... regions (Figure lb). Similar observations have been made for other Y chromosomes stained with Hoechst 33258 or quinacrine (GATTI, PIMPINELLI and SANTINI1976; GATTI and PIMPINELLI1983). Three of the one-step y bb" chromosomes, 10, 35 and 48, appeared as acrocentric chromosomes with a uniformly staini ...
... regions (Figure lb). Similar observations have been made for other Y chromosomes stained with Hoechst 33258 or quinacrine (GATTI, PIMPINELLI and SANTINI1976; GATTI and PIMPINELLI1983). Three of the one-step y bb" chromosomes, 10, 35 and 48, appeared as acrocentric chromosomes with a uniformly staini ...
Genetics Practice Test
... 94. What is the phenotype ratio of the offspring of the plants in the Punnett square in Figure 11–2? 95. A tall pea plant with yellow seeds is heterozygous for height and seed color (TtYy). This plant is crossed with a pea plant heterozygous for height but homozygous recessive for seed color (Ttyy). ...
... 94. What is the phenotype ratio of the offspring of the plants in the Punnett square in Figure 11–2? 95. A tall pea plant with yellow seeds is heterozygous for height and seed color (TtYy). This plant is crossed with a pea plant heterozygous for height but homozygous recessive for seed color (Ttyy). ...
Incest Statutes and the Fundamental Right of Marriage: Is Oedipus
... and sister and invented sexual intercourse. R. E. L. MASTERS, supra note 2, at 10-12. 9. The incest motif in literature appears in three forms. One form is the unconscious perpetration of incest as exemplified by Sophocles' Oedipus. The second form, conscious perpetration of incest, is rare, but is ...
... and sister and invented sexual intercourse. R. E. L. MASTERS, supra note 2, at 10-12. 9. The incest motif in literature appears in three forms. One form is the unconscious perpetration of incest as exemplified by Sophocles' Oedipus. The second form, conscious perpetration of incest, is rare, but is ...
letters - Centre for Social Evolution
... conserved progenitor gene from which csd arose and encodes an SR-type protein, harbouring an Arg/Ser-rich domain. Fem shares the same arrangement of Arg/Ser- and proline-rich-domain with the Drosophila principal sex-determining gene transformer (tra), but lacks conserved motifs except for a 30-amino ...
... conserved progenitor gene from which csd arose and encodes an SR-type protein, harbouring an Arg/Ser-rich domain. Fem shares the same arrangement of Arg/Ser- and proline-rich-domain with the Drosophila principal sex-determining gene transformer (tra), but lacks conserved motifs except for a 30-amino ...
Journal Club 3
... latent period program in M. tuberculosis • High doses of NO is toxic for bacteria • NO inhibits aerobic respiration in mitochondria and bacteria • NO is an important signaling agent for eukaryotes ...
... latent period program in M. tuberculosis • High doses of NO is toxic for bacteria • NO inhibits aerobic respiration in mitochondria and bacteria • NO is an important signaling agent for eukaryotes ...
A mutation in α-tropomyosin affects muscle strength, maturation and
... The tropomyosins comprise a large family of structural proteins. In skeletal muscle, tropomyosin forms a thin filament through the head-to-tail polymerization of rod-like heterodimers of α and β subunits (22). The tropomyosin filament lies in the major groove of filamentous α-actin and plays a regul ...
... The tropomyosins comprise a large family of structural proteins. In skeletal muscle, tropomyosin forms a thin filament through the head-to-tail polymerization of rod-like heterodimers of α and β subunits (22). The tropomyosin filament lies in the major groove of filamentous α-actin and plays a regul ...
Finding New Clock Components: Past and Future
... knockout is Per2, which causes a 1.5-h period shortening and eventual loss of rhythms in the majority of mice in constant darkness (Zheng et al., 1999). Knockouts of Per1 and Per3 fall into the subtle (0-1 hour period changes) category at best (Bae et al., 2001). Fortunately, the Per1/Per2 double-kn ...
... knockout is Per2, which causes a 1.5-h period shortening and eventual loss of rhythms in the majority of mice in constant darkness (Zheng et al., 1999). Knockouts of Per1 and Per3 fall into the subtle (0-1 hour period changes) category at best (Bae et al., 2001). Fortunately, the Per1/Per2 double-kn ...
Potential alteration of U37K paleothermometer due to selective
... tion of UK37 values and identification of any metabolites produced during the different incubation times. In order to monitor the degradation of alkenones by the different bacteria, sterile controls were prepared in the same way as the bacterial incubation flasks, but without adding the bacterial in ...
... tion of UK37 values and identification of any metabolites produced during the different incubation times. In order to monitor the degradation of alkenones by the different bacteria, sterile controls were prepared in the same way as the bacterial incubation flasks, but without adding the bacterial in ...
IVRI OB 1809
... This brings a contradiction into the notion of genotype and environment. The organ of the genotype is not one but many nuclei distributed throughout the body. These nuclei are sur~ rounded by a ,material, the cytoplasm, through which they exert their effect on th.e organism and on one another. They ...
... This brings a contradiction into the notion of genotype and environment. The organ of the genotype is not one but many nuclei distributed throughout the body. These nuclei are sur~ rounded by a ,material, the cytoplasm, through which they exert their effect on th.e organism and on one another. They ...