scholarly journals Target and Specificity of a Nuclear Gene Product That Participates in mRNA 3′-End Formation inChlamydomonasChloroplasts

1999 ◽  
Vol 274 (50) ◽  
pp. 35955-35962 ◽  
Author(s):  
Haim Levy ◽  
Karen L. Kindle ◽  
David B. Stern
Keyword(s):  
1995 ◽  
Vol 27 (3) ◽  
pp. 234-238 ◽  
Author(s):  
Piotr P. Stepien ◽  
Leszek Kokot ◽  
Tomasz Leski ◽  
Ewa Bartnik
Keyword(s):  

1979 ◽  
Vol 32 (6) ◽  
pp. 597
Author(s):  
NG Brink

Previous studies have shown that the D. melanogaster mutant 1(1)1074" is sensitive to temperature changes towards the end of oogenesis, during the sixth to twelfth hour of embryogenesis and again during larval and early pupal development. The 1(1) 1074" gene product resulting from activity of the nuclear gene appears to be important for pupation.


1990 ◽  
Vol 18 (2) ◽  
pp. 117-124 ◽  
Author(s):  
I. Bousquet ◽  
G. Dujardin ◽  
R. O. Poyton ◽  
P. P. Slonimski

2009 ◽  
Vol 40 (01) ◽  
Author(s):  
J Schessl ◽  
Y Zou ◽  
MJ McGrath ◽  
BS Cowling ◽  
B Maiti ◽  
...  

1994 ◽  
Vol 72 (01) ◽  
pp. 065-069 ◽  
Author(s):  
J M Soria ◽  
D Brito ◽  
J Barceló ◽  
J Fontcuberta ◽  
L Botero ◽  
...  

SummarySingle strand conformation polymorphism (SSCP) analysis of exon 7 of the protein C gene has identified a novel splice site missense mutation (184, Q → H), in a newborn child with purpura fulminans and undetectable protein C levels. The mutation, seen in the homozygous state in the child and in the heterozygous state in her mother, was characterized and found to be a G to C nucleotide substitution at the -1 position of the donor splice site of intron 7 of the protein C gene, which changes histidine 184 for glutamine (184, Q → H). According to analysis of the normal and mutated sequences, this mutation should also abolish the function of the donor splice site of intron 7 of the protein C gene. Since such a mutation is compatible with the absence of gene product in plasma and since DNA sequencing of all protein C gene exons in this patient did not reveal any other mutation, we postulate that mutation 184, Q → H results in the absence of protein C gene product in plasma, which could be the cause of the severe phenotype observed in this patient.


2020 ◽  
pp. 207-214
Author(s):  
Akbar Fattahi

The Iranian species of the phyllodactylid geckos of the genus Asaccus are found only in the valleys of the Zagros Mountains, a region which represents an important area of endemism in western Iran. Recently, many relict species have been described from the central and southern parts of the Zagros Mountains, which were previously known as A. elisae. The recent descriptions of species within this complex suggest that diversity within the genus may be higher than expected and that its taxonomy and systematics should be revised. In the present study, phylogenetic relationships within the genus Asaccus were evaluated using two mitochondrial and one nuclear gene. Genetically, the genus shows high levels of variability. The molecular phylogeny of the genus suggests the presence of three main clades along the Zagros Mountains with the southern population (from the Hormozgan province) and one clade (A. sp8 and A. sp9) being sister taxon to A. montanus from UAE. The remaining samples are separated into two reciprocally monophyletic groups: the northern (Kurdistan, Kermanshah and Ilam provinces) and the central (Lorestan, Khuzestan, Kohgilouye-Bouyer Ahmad and Fars provinces) Zagros groups. The results of the present study suggest that populations attributed to A. elisae in Iran correspond to distinct lineages with high genetic distances. In brief, our results suggest that the genus needs a major taxonomical revision The Arabian origin of the genus has not been confirmed, because two populations from Zagros were located within the A. montanus, A. gallagheri and A. platyrhynchus clade. Further morphological analyses are needed to systematically define each genetic lineage as a new taxon.


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