Registration of seven recombinant inbred lines of upland cotton with improved fiber length or strength

2021 ◽  
Author(s):  
Johnie N. Jenkins ◽  
Jack C. McCarty ◽  
Russell W. Hayes ◽  
Martin J. Wubben ◽  
David D. Fang ◽  
...  
Keyword(s):  
Recombinant Inbred ◽  
Upland Cotton ◽  
Fiber Length ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

scholarly journals Genetic Analysis and QTL Detection on Fiber Traits Using Two Recombinant Inbred Lines and Their Backcross Populations in Upland Cotton

2016 ◽  
Vol 6 (9) ◽  
pp. 2717-2724 ◽  
Author(s):  
Lianguang Shang ◽  
Yumei Wang ◽  
Xiaocui Wang ◽  
Fang Liu ◽  
Abdugheni Abduweli ◽  
...  
Keyword(s):  
Genetic Analysis ◽  
Recombinant Inbred ◽  
Upland Cotton ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Qtl Detection ◽  
Backcross Populations ◽  
Fiber Traits

QTL Analysis on Yield and Its Components in Recombinant Inbred Lines of Upland Cotton

2011 ◽  
Vol 37 (3) ◽  
pp. 433-442 ◽  
Author(s):  
Wei ZHANG ◽  
Fang LIU ◽  
Shao-Hui LI ◽  
Wei WANG ◽  
Chun-Ying WANG ◽  
...  
Keyword(s):  
Qtl Analysis ◽  
Recombinant Inbred ◽  
Upland Cotton ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

Registration of Two CS-B17-derived Upland Cotton Recombinant Inbred Lines with Improved Fiber Micronaire

2017 ◽  
Vol 12 (1) ◽  
pp. 97-100
Author(s):  
Sukumar Saha ◽  
Johnie N. Jenkins ◽  
Jack C. McCarty ◽  
R. W. Hayes ◽  
David M. Stelly ◽  
...  
Keyword(s):  
Recombinant Inbred ◽  
Upland Cotton ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

scholarly journals Molecular Mapping of QTLs for Fiber Quality Traits in Gossypium hirsutum Multi-parent Recombinant Inbred Lines

2021 ◽  
Author(s):  
Sami Doğanlar ◽  
Asena Akköse Baytar ◽  
Ceng Peynircioğlu ◽  
Volkan Sezener ◽  
Anne Frary
Keyword(s):  
Association Mapping ◽  
Cotton Fiber ◽  
Recombinant Inbred ◽  
Fiber Length ◽  
Molecular Mapping ◽  
Recombinant Inbred Lines ◽  
Fiber Quality ◽  
Inbred Lines ◽  
Global Market ◽  
Raw Material

Abstract Cotton is a valuable fiber crop which supplies raw material to more than 50 industries and is produced in more than 70 countries worldwide thus, it is worthy of its reputation as “white gold”. The superiority of cotton fiber over other crops is primarily dependent on its quality. However, further improvements in fiber length, strength and fineness are required for modern processing technology and for cotton to maintain its position in the global market. Association mapping enables identification of QTLs controlling fiber quality-related traits which can be useful in cotton breeding. In the present study, we performed genetic diversity, linkage disequilibrium and association mapping analyses in 157 G. hirsutum multi-parent recombinant inbred lines using a total of 102 SSR markers. The population had depressed genetic variability (14%), a result of inbreeding of modern cotton genotypes. Despite this, we identified 13 significant and stable marker-trait associations for seed cotton yield, lint percentage, fiber length, fiber strength and fiber fineness (p < 0.005). We also detected QTL co-localizations with positive and negative marker additive effects. Our results indicate that selection against negative alleles may be as important as selection for positive alleles. Analysis of the effects of allelic combinations at different QTLs revealed significant and stable marker clusters that can be selected for or against to provide maximum quality gains in cotton fiber quality.

Diverse sources of resistance to Spodoptera litura (F.) in groundnut

2019 ◽  
Vol 79 (01S) ◽  
Author(s):  
M. A. Saleem ◽  
G. K. Naidu ◽  
H. L. Nadaf ◽  
P. S. Tippannavar
Keyword(s):  
Recombinant Inbred ◽  
Spodoptera Litura ◽  
Hot Spot ◽  
Recombinant Inbred Lines ◽  
Insect Pest ◽  
Inbred Lines ◽  
Leaf Damage ◽  
Botanical Variety ◽  
Resistant Genotypes ◽  
Botanical Varieties

Spodoptera litura an important insect pest of groundnut causes yield loss up to 71% in India. Though many effective chemicals are available to control Spodoptera, host plant resistance is the most desirable, economic and eco-friendly strategy. In the present study, groundnut mini core (184), recombinant inbred lines (318) and elite genotypes (44) were studied for their reaction to Spodoptera litura under hot spot location at Dharwad. Heritable component of variation existed for resistance to Spodoptera in groundnut mini core, recombinant inbred lines and elite genotypes indicating scope for selection of Spodoptera resistant genotypes. Only 29 (15%) genotypes belonging to hypogaea, fastigiata and hirsuta botanical varieties under mini core set, 15 transgressive segregants belonging to fastigiata botanical variety among 318 recombinant inbred lines and three genotypes belonging to hypogaea and fastigiata botanical varieties under elite genotypes showed resistance to Spodoptera litura with less than 10% leaf damage. Negative correlation existed between resistance to Spodoptera and days to 50 per cent flowering indicating late maturing nature of resistant genotypes. Eight resistant genotypes (ICG 862, ICG 928, ICG 76, ICG 2777, ICG 5016, ICG 12276, ICG 4412 and ICG 9905) under hypogaea botanical variety also had significantly higher pod yield. These diverse genotypes could serve as potential donors for incorporation of Spodoptera resistance in groundnut.

Sign in / Sign up

Export Citation Format

Share Document