COMPARATIVE ANALYSIS OF THE NICOTINE EXTRACTION PROCESS FROM NICOTIANA TABACUM L. IN SUPERCRITICAL CONDITIONS UNDER VARIOUS EXTRACTANT FLOWS

2020 ◽  
Vol 3 (441) ◽  
pp. 59-65
Author(s):  
Y.S. Ikhsanov ◽  
◽  
N.T. Andasova ◽  
A.S. Shevchenko ◽  
M.K. Nauryzbaev ◽  
...  
2018 ◽  
Vol 54 (No. 3) ◽  
pp. 115-122 ◽  
Author(s):  
Tong Zhijun ◽  
Xiao Bingguang ◽  
Chen Xuejun ◽  
Fang Dunhuang ◽  
Zhang Yihan ◽  
...  

Genetic linkage maps representing the tobacco genome have been an important tool for breeding programs because of the elucidation of polygenic traits. We constructed a genetic linkage map of cigar tobacco (Nicotiana tabacum L.) based on an inter-type backcross population of 213 individuals and performed a comparative analysis with other published maps of dark tobacco and flue-cured tobacco. The map consisted of 562 SSR loci distributed on 24 tentative linkage groups and spanned a total length of 1341.18 cM with an average distance of 2.39 cM between adjacent markers. The comparative analysis revealed a Spearman correlation index of 0.93 for marker order conservation with the previously published maps constructed for different tobacco types. Approximately 91% of the SSR markers common to other inter-type maps were located in the same positions as in previous maps. The three maps exhibit good synteny in terms of the shared markers, which suggests that there might be no translocation variations between the genomes of the cigar, dark and flue-cured tobaccos. These results indicate the feasibility of generating a unique genetic map of preferred traits in cigar tobacco and that such mapping may be helpful for breeding programs because plants derived from different inter-type populations can be rapidly scanned using the markers associated with useful cigar traits


Author(s):  
Arne J. Aasen ◽  
Sven-Olof Almquist ◽  
Curt R. Enzell

Abstract35: two isomeric 5,6-Epoxy-3-hydroxy-7-megastigmen-9-ones from Nicotiana tabacum L.


Crop Science ◽  
1964 ◽  
Vol 4 (4) ◽  
pp. 349-353 ◽  
Author(s):  
T. J. Mann ◽  
J. A. Weybrew ◽  
D. F. Matzinger ◽  
J. L. Hall

Author(s):  
Monika Agacka-Mołdoch ◽  
Mian Abdur Rehman Arif ◽  
Ulrike Lohwasser ◽  
Teresa Doroszewska ◽  
Ramsey S. Lewis ◽  
...  

AbstractGenetic mapping of seed germination traits has been performed with many plant species. In tobacco, however, investigations are rare. In the present study, a bi-parental mapping population consisting of 118 doubled haploid lines and derived from a cross between ‘Beinhart-1000’ and ‘Hicks’ was investigated. Four germination-related traits, total germination (TG), normal germination (NG), time to reach 50% of total germination (T50), and the area under the curve after 200 h of germination (AUC) were considered by examining seeds either untreated or after a moderate controlled deterioration (CD). Quantitative trait loci were found for all traits distributed on 11 out of the 24 linkage groups. It was demonstrated that, as in many other species, germination-related traits are very complex and under polygenic control.


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