scholarly journals Does segregating variation in sexual or microhabitat preferences lead to non-random mating within a population of Drosophila melanogaster ?

2009 ◽  
Vol 6 (1) ◽  
pp. 102-105 ◽  
Author(s):  
Brad R. Foley ◽  
Anne Genissel ◽  
Harmon L. Kristy ◽  
Sergey V. Nuzhdin
Keyword(s):  
Recombinant Inbred Lines ◽  
Random Mating ◽  
Population Level ◽  
Inbred Lines ◽  
Male Mating ◽  
Complex Environment ◽  
Level Variation ◽  
Group Preference ◽  
Female Genotype ◽  
Microhabitat Preferences

Variation in female choice for mates has implications for the maintenance of genetic variation and the evolution of male traits. Yet, estimates of population-level variation in male mating success owing to female genotype are rare. Here, we used a panel of recombinant inbred lines to estimate the strength of selection at many genetic loci in a single generation and attempt to assess differences between females with respect to the males they mated with. We performed selection assays in a complex environment to allow differences in habitat or social group preference to be expressed. We detected directional selection at loci across the genome, but are unable to provide support for differential male success because of variation in female genotype.

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.

scholarly journals QTL analysis of seed dormancy in Arabidopsis using recombinant inbred lines and MQM mapping

Heredity ◽  
1997 ◽  
Vol 79 (2) ◽  
pp. 190-200 ◽  
Author(s):  
Wybe van der Schaar ◽  
Carlos Alonso-Blanco ◽  
Karen M Léon-Kloosterziel ◽  
Ritsert C Jansen ◽  
Johan W van Ooijen ◽  
...  
Keyword(s):  
Seed Dormancy ◽  
Qtl Analysis ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

scholarly journals A novel non-trichome based whitefly resistance QTL in Solanum galapagense

Euphytica ◽  
2021 ◽  
Vol 217 (3) ◽  
Author(s):  
Joris Santegoets ◽  
Marcella Bovio ◽  
Wendy van’t Westende ◽  
Roeland E. Voorrips ◽  
Ben Vosman
Keyword(s):  
Frankliniella Occidentalis ◽  
Recombinant Inbred Lines ◽  
Glandular Trichomes ◽  
Glandular Trichome ◽  
Trialeurodes Vaporariorum ◽  
Inbred Lines ◽  
Adult Survival ◽  
Greenhouse Whitefly ◽  
Major Threat ◽  
Type Iv

AbstractThe greenhouse whitefly Trialeurodes vaporariorum is a major threat in tomato cultivation. In greenhouse grown tomatoes non-trichome based whitefly resistance may be better suited than glandular trichome based resistance as glandular trichomes may interfere with biocontrol, which is widely used. Analysis of a collection of recombinant inbred lines derived from a cross between Solanum lycopersicum and Solanum galapagense showed resistance to the whitefly T. vaporariorum on plants without glandular trichomes type IV. The resistance affected whitefly adult survival (AS), but not oviposition rate. This indicates that S. galapagense, in addition to trichome based resistance, also carries non-trichome based resistance components. The effectiveness of the non-trichome based resistance appeared to depend on the season in which the plants were grown. The resistance also had a small but significant effect on the whitefly Bemisia tabaci, but not on the thrips Frankliniella occidentalis. A segregating F2 population was created to map the non-trichome based resistance. Two Quantitative trait loci (QTLs) for reduced AS of T. vaporariorum were mapped on chromosomes 12 and 7 (explaining 13.9% and 6.0% of the variance respectively). The QTL on chromosome 12 was validated in F3 lines.

Effects of SGP-B1 protein on the qualities of grain and starch in a recombinant inbred lines population

2021 ◽  
Author(s):  
Yelun Zhang ◽  
Yaning Meng ◽  
Liangjie Lv ◽  
Yingjun Zhang ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

scholarly journals The Genomes of Recombinant Inbred Lines

Genetics ◽  
2006 ◽  
Vol 173 (4) ◽  
pp. 2419-2419
Author(s):  
K W Broman
Keyword(s):  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

scholarly journals On the origin and evolutionary consequences of gene body DNA methylation

2016 ◽  
Vol 113 (32) ◽  
pp. 9111-9116 ◽  
Author(s):  
Adam J. Bewick ◽  
Lexiang Ji ◽  
Chad E. Niederhuth ◽  
Eva-Maria Willing ◽  
Brigitte T. Hofmeister ◽  
...  
Keyword(s):  
Gene Expression ◽  
Dna Methylation ◽  
Recombinant Inbred Lines ◽  
Dna Methyltransferases ◽  
Inbred Lines ◽  
Gene Body ◽  
Gene Body Methylation ◽  
Eutrema Salsugineum ◽  
And Function ◽  
Evolutionary Consequences

In plants, CG DNA methylation is prevalent in the transcribed regions of many constitutively expressed genes (gene body methylation; gbM), but the origin and function of gbM remain unknown. Here we report the discovery that Eutrema salsugineum has lost gbM from its genome, to our knowledge the first instance for an angiosperm. Of all known DNA methyltransferases, only CHROMOMETHYLASE 3 (CMT3) is missing from E. salsugineum. Identification of an additional angiosperm, Conringia planisiliqua, which independently lost CMT3 and gbM, supports that CMT3 is required for the establishment of gbM. Detailed analyses of gene expression, the histone variant H2A.Z, and various histone modifications in E. salsugineum and in Arabidopsis thaliana epigenetic recombinant inbred lines found no evidence in support of any role for gbM in regulating transcription or affecting the composition and modification of chromatin over evolutionary timescales.

QTL analysis of seed dormancy in Arabidopsis using recombinant inbred lines and MQM mapping

Heredity ◽  
1997 ◽  
Vol 79 (2) ◽  
pp. 190-200 ◽  
Author(s):  
WYBE VAN DER SCHAAR ◽  
CARLOS ALONSO-BLANCO ◽  
KAREN M LÉON-KLOOSTERZIEL ◽  
RITSERT C JANSEN ◽  
JOHAN W VAN OOIJEN ◽  
...  
Keyword(s):  
Seed Dormancy ◽  
Qtl Analysis ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Inbred Lines
Sign in / Sign up

Export Citation Format

Share Document