Membrane Heredity Composed by Symbiogenesis
Javeed Hussain,
Guangxiao Yang,
Guangyuan He
Issue:
Volume 2, Issue 2, April 2014
Pages:
82-88
Received:
16 March 2014
Accepted:
10 April 2014
Published:
20 April 2014
Abstract: Symbiogenesis overshadows the importance of other eukaryogenetic processes. By working on the endosymbiotic cellular heredity in its entirety, it transformed the eukaryotic world. This mini-review strived to produce a concise account of symbiogenetic heredity of membranes in eukaryotes. Symbiogenesis integrated the endosymbiotic alpha-proteobacterium and cyanobacterium with the host, by utilising almost all the major prokaryotic components of membranes and protein translocation machinery along with a lot of eukaryotic inventions. It beautifully compartmentalized the eukaryotic cell by putting the prokaryotic membranes in continuity with the eukaryotic membranes and produced a whole spectrum of membrane topologies. Topogenesis of symbiogenetic hereditary membranes produced cell organelles with a diversity of metabolic capabilities. Development of protein translocation system manifests real ingenuity of symbiogenetic processes which integrates the working of entire compliment of cellular organelles. Protein translocation systems are also chimera of prokaryotic and eukaryotic components
Abstract: Symbiogenesis overshadows the importance of other eukaryogenetic processes. By working on the endosymbiotic cellular heredity in its entirety, it transformed the eukaryotic world. This mini-review strived to produce a concise account of symbiogenetic heredity of membranes in eukaryotes. Symbiogenesis integrated the endosymbiotic alpha-proteobacteri...
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Correlation and Path Coefficient Analysis among Yield Component Traits of Ethiopian Mustard (Brassica Carinata a. Brun) at Adet, Northwestern, Ethiopia
Tesfaye Walle Mekonnen,
Adugna Wakjira,
Tsige Genet
Issue:
Volume 2, Issue 2, April 2014
Pages:
89-96
Received:
9 February 2014
Accepted:
16 April 2014
Published:
20 April 2014
Abstract: The knowledge of Ethiopian mustard improvement for a targeted character can be achieved by indirect selection via other characters that are more heritable and easy to select. This selection strategy requires understanding the interrelationship of the characters among themselves and with the target character. The degree of association between two characters is measured by the correlation coefficient. Correlation is, therefore, helpful in determining the component characters of a complex trait, like yield. The present study was undertaken to determine nature of association of agronomic traits of thirty six Ethiopian mustard (Brassica carinata) genotypes which were evaluated Adet Agricultural Research Center, Ethiopia. The experiment was laid out in simple lattice design with two replications. The correlation and path coefficient analysis were conducted for 15 and five traits respectively at phenotypic and genotypic levels. Seed yield per plot was positively correlated with oil yield, biomass, plant height, days to maturity, grain-filling period, and secondary branches per plant and 1000seed weight at both genotypic and phenotypic levels. However, it was negatively correlated with days to flowering, number of pod per plant, number of seeds per pod and pod length at phenotypic level and, with primary branches per plant and harvest index at genotypic level, and oil content negatively correlated with at both levels. Phenotypic and genotypic path coefficient analysis of harvest index had exerted positive direct effect on seed yield. Grain filling period and harvest index had exerted positive direct effect on oil content at genotypic level. Day to maturity, grain filling period, secondary branches per plant, harvest index and seed yield seed yield per plot had exerted negative effect on oil content at phenotypic level
Abstract: The knowledge of Ethiopian mustard improvement for a targeted character can be achieved by indirect selection via other characters that are more heritable and easy to select. This selection strategy requires understanding the interrelationship of the characters among themselves and with the target character. The degree of association between two ch...
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Interrelationship and Path Coefficient Analysis of Some Growth and Yield Characteristics in Cowpea (Vigna Unguiculata L. Walp) Genotypes
Diriba Shanko,
Mebeasellasie Andargie,
Habtamu Zelleke
Issue:
Volume 2, Issue 2, April 2014
Pages:
97-101
Received:
12 April 2014
Accepted:
8 May 2014
Published:
20 May 2014
Abstract: Field experiments were conducted during 2010/2011 to determine the interrelationship and path coefficient analysis of growth characters to seed yield. The experiment was laid out in 7 x 7 triple lattice designs at Haramaya University research farm, Dire Dawa. Seed yield exhibited positive and significant environmental correlation with number of primary branches per plant, number of secondary branches per plant, days to 50% flowering, number of pods per plant, number of seeds per pod and plant height. Path analysis revealed that, yield per plant exerted the maximum positive direct effect on seed yield followed by number of pods per plant, while number of secondary branches per plant, days to flowering, days to maturity and number of seed per pod exhibited negative direct effect phenotypically. In addition, genotypic path analysis revealed that, maximum direct effect on seed yield was exerted by number of pods per plant and yield per plant. However, days to 50% flowering, days to maturity, number of secondary branches per plant and number of seed per pod exerted negative direct effect on seed yield. Thus, yield per plant and number of pods per plant could be used as a selection index for cowpea improvement.
Abstract: Field experiments were conducted during 2010/2011 to determine the interrelationship and path coefficient analysis of growth characters to seed yield. The experiment was laid out in 7 x 7 triple lattice designs at Haramaya University research farm, Dire Dawa. Seed yield exhibited positive and significant environmental correlation with number of pri...
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