scholarly journals Four resistance alleles derived from Oryza longistaminata (A. Chev. & Roehrich) against green rice leafhopper, Nephotettix cincticeps (Uhler) identified using novel introgression lines

2019 ◽  
Vol 69 (4) ◽  
pp. 573-584 ◽  
Author(s):  
Hnin Wah Thein ◽  
Yoshiyuki Yamagata ◽  
Tan Van Mai ◽  
Hideshi Yasui
Keyword(s):  
Introgression Lines ◽  
Green Rice Leafhopper ◽  
Oryza Longistaminata

Rapid Development of Glu-1 Locus Near-isogenic Introgression Lines Using HMW-GS Deletion Mutant

2016 ◽  
Vol 42 (8) ◽  
pp. 1247
Author(s):  
Xing-Xing ZHANG ◽  
Zhao-Jun WANG ◽  
Yu-Shuang YANG ◽  
Dao-Wen WANG ◽  
Wen- Ming ZHENG ◽  
...  
Keyword(s):  
Deletion Mutant ◽  
Rapid Development ◽  
Introgression Lines

Development and Analysis of Introgression Lines on Chromosomes 1H–7H in Barley

2013 ◽  
Vol 38 (9) ◽  
pp. 1640-1648 ◽  
Author(s):  
Yong LAI ◽  
Jing-Xia FENG ◽  
Er-Jing SI ◽  
Bao-Chun LI ◽  
Ya-Xiong MENG ◽  
...  
Keyword(s):  
Introgression Lines

Development of Introgression Lines and Identification of QTLs for Resistance to Sheath Blight

2011 ◽  
Vol 37 (9) ◽  
pp. 1559-1568
Author(s):  
Xiao-Qing GAO ◽  
Xue-Wen XIE ◽  
Mei-Rong XU ◽  
Lei WANG ◽  
Ying-Yao SHI ◽  
...  
Keyword(s):  
Sheath Blight ◽  
Introgression Lines

scholarly journals Alien introgression and morpho-agronomic characterization of diploid progenies of Solanum lycopersicoides monosomic alien addition lines (MAALs) toward pre-breeding applications in tomato (S. lycopersicum)

2021 ◽  
Author(s):  
Puneet Kaur Mangat ◽  
Junghyun Shim ◽  
Ritchel B. Gannaban ◽  
Joshua J. Singleton ◽  
Rosalyn B. Angeles-Shim
Keyword(s):  
Chromosome Complement ◽  
Introgression Lines ◽  
Addition Lines ◽  
Solanum Lycopersicoides ◽  
Drought Tolerant ◽  
Use Efficiency ◽  
Tomato Breeding ◽  
Chromosome Segments ◽  
Alien Addition Lines

Abstract Key message Alien introgressions that were captured in the genome of diploid plants segregating from progenies of monosomic alien addition lines of S. lycopersicoides confer novel phenotypes with commercial and agronomic value in tomato breeding. Abstract Solanum lycopersicoides is a wild relative of tomato with a natural adaptation to a wide array of biotic and abiotic challenges. In this study, we identified and characterized diploid plants segregating from the progenies of monosomic alien addition lines (MAALs) of S. lycopersicoides to establish their potential as donors in breeding for target trait improvement in tomato. Molecular genotyping identified 28 of 38 MAAL progenies having the complete chromosome complement of the cultivated tomato parent and limited chromosome introgressions from the wild S. lycopersicoides parent. Analysis of SSR and indel marker profiles identified 34 unique alien introgressions in the 28 MAAL-derived introgression lines (MDILs) in the genetic background of tomato. Conserved patterns of alien introgressions were detected among sibs of MDILs 2, 3, 4 and 8. Across MDILs, a degree of preferential transmission of specific chromosome segments was also observed. Morphologically, the MDILs closely resembled the cultivated tomato more than S. lycopersicoides. The appearance of novel phenotypes in the MDILs that are lacking in the cultivated parent or the source MAALs indicates the capture of novel genetic variation by the diploid introgression lines that can add commercial and agronomic value to tomato. In particular, screening of representative MDILs for drought tolerance at the vegetative stage identified MDIL 2 and MDIL 11III as drought tolerant based on visual scoring. A regulated increase in stomatal conductance of MDIL 2 under drought stress indicates better water use efficiency that allowed it to survive for 7 days under 0% moisture level.

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