Genetic Variability and Heritability in F4 Populations of Brassica napus L.

Khan, Tahir Naeem; Raziuddin, Raziuddin; Fakharuddin, Fakharuddin; Razi, Muazam Jamal

doi:10.17582/journal.sja/2016/32.2.96.103

Cited by 6 publications

(5 citation statements)

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“…Meanwhile, the maximum SCA value came from crosses 40981 × 26283, 40961 × 26240, and 40970 × 26240 for seed/silique. Singh et al (2002) and Khan et al (2008) found similar results for seed/silique.…”

Section: Specific Combining Ability Effectsmentioning

confidence: 55%

Estimation of Combining Ability Effects for Yield and Fatty Acid-Related Traits in Brassica Rapa Using Line by Tester Analysis

MUSTAFA

2023

SABRAOJBG

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Brassica rapa is an important oilseed crop in Pakistan. It is a rich source of oil and contains 40%–46% oil. In addition, its meal has 38%–40% protein. Given their high levels of erucic acid and glucosinolate, mustard and rapeseed oil is unhealthy as regular cooking oil. A dire need to exploit the genetic variability of rapeseed germplasm is necessary to improve the performance of cultivars. The line × tester analysis helped estimate various types of gene actions that are important to quantitative traits. The key to successful research is selecting suitable lines and testers and designing good mating patterns. Choosing and developing genotypes with high yield and fatty acid profiles are the major concern of rapeseed breeders. The current research on hybridization and evaluation of Brassica rapa accessions sought better harvest and its related traits from the selected germplasm. The combining ability effects determination used line × tester analysis in rapeseed. The accessions’ variability analysis exhibited extremely significant differences in yield and related traits. Recorded data for different morphological and yield-related qualities provided days till 50% flowering, the number of major branches per plant, and the number of secondary branches per plant had positive and significant general combining ability estimates, and all yield-related variables had extremely notable specific combining ability estimates. All the yield-related characteristics displayed a favorable and substantial connection in the examined germplasm. Among the lines, 28244, 40980, and 40981 occurred to be the best general combiners showing the additive gene action. The cross combinations, 40977 × 26283, 40979 × 26283, and 40981 × 26283, indicated significant specific combining ability effects, which showed the non-additive genetic effects of total variance due to the dominance and/or epistasis. The results suggested that the research material used in the remarkable study can benefit by improving yield and fatty acids-related components and can further enhance upcoming breeding programs based on strong particular combining ability impacts.

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Section: Specific Combining Ability Effectsmentioning

confidence: 55%

Estimation of Combining Ability Effects for Yield and Fatty Acid-Related Traits in Brassica Rapa Using Line by Tester Analysis

MUSTAFA

2023

SABRAOJBG

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“…It constitutes divergence in plants based on different traits. Thus, plant breeders focus their efforts on exploring and increasing genetic diversity among available genotypes, and hence on the development of high-yielding cultivars adapted to different edaphoclimatic conditions (Khan and Razi 2016).…”

Section: Genetic Diversitymentioning

confidence: 99%

Breeding strategies to consolidate canola among the main crops for biofuels

et al. 2021

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Canola is a product of traditional plant breeding techniques to remove from rapeseed the antinutritional components erucic acid. This crop proves to be a promising crop due to the diverse purposes of its oil, especially by its potential for biofuel production. This paper aimed to integrate the information available in the literature and report the most promising strategies for genetic and biotechnological progress in canola. Thus, we carried out a detailed review of the origin and uses of canola, its socioeconomic importance in the global and Brazilian aspects, tropicalization, with emphasis on genetic breeding. We demonstrate the main breeding strategies that can be used to increase your oil production.We propose here a breeding strategy for canola, in which some strategies previously mentioned are integrated. The purpose of this strategy is to enhance the selection and efficiency at the beginning of a breeding program. Among these, genome wide selection (GWS) is a suitable tool to help breeders to improve the efficiency selection in a canola breeding program increasing the selection accuracy or even reducing the cycle time. The proposed strategies must be analyzed for each situation, adjusting the GWS model to obtain highest selection accuracy.

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“…The diversity of plant genetic resources is imperative for crop improvement and information on these reservoir can contribute to the pace of improvement [5]. The main factors influencing the success of any crop improvement programme are genetic changes, heritability, and variability during the selection stage [6]. Yield and fatty acids are quantitative traits so, interrelationship of various traits with yield and fatty acid should be determined [7,8].…”

Section: Introductionmentioning

confidence: 99%

Exploring Genetic Variation in Brassica rapa for Improved Yield and Fatty Acid Profiles

Mustafa,

Razzaq,

Ahmad Khan

et al. 2023

P. Bulletin

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Brassica rapa is one of the most widely cultivated oilseed crops and is known for a variety of benefits across the globe. Brassica rapa is one of the key Brassica species. Together with significant oil concentrations, it is distinguished by a high concentration of macro and micronutrients. Oilseed rape cultivars have high amounts of erucic acid and glucosinolate which may increase health risks. The current study was carried out in 2021 in the research area of the Department of Plant Breeding and Genetics at the University of Agriculture, Faisalabad. The goal of the experiment was to find Brassica rapa accessions with improved yield and fatty acid-related characteristics from the germplasm by screening and choosing them. One hundred accessions of B. rapa were screened for better yield and fatty acid-related traits in a randomized complete block design. Data were obtained for many morphological and fatty acid-related characteristics. Analysis of variance, mean comparison, correlation, and principal component analysis were performed on the recorded data. Three testers; 26240, 26283, and 26215 and ten lines; 28244, 40961, 40970, 40975, 40977, 40978, 40979, 40980, 40981 and 40982 were selected on a mean performance basis. The highest mean value was shown by 40975, and 40977 lines for most of the traits. The findings demonstrated that there was significant genetic variation in the oil content and mix of fatty acids across the species under study. This suggests that the oil extracted from the seeds of these lines may be appropriate for both industrial and human use. The selected accessions should be further assessed for various yield and fatty acid-related traits to modify their value for edible purposes. They may also be utilized as a favourable germplasm in the breeding program.

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Genetic Variability and Heritability in F4 Populations of Brassica napus L.

Cited by 6 publications

References 0 publications

Estimation of Combining Ability Effects for Yield and Fatty Acid-Related Traits in Brassica Rapa Using Line by Tester Analysis

Estimation of Combining Ability Effects for Yield and Fatty Acid-Related Traits in Brassica Rapa Using Line by Tester Analysis

Breeding strategies to consolidate canola among the main crops for biofuels

Exploring Genetic Variation in Brassica rapa for Improved Yield and Fatty Acid Profiles

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