The Combining Ability for Grain Yield and Some Related Characteristics in Rice (Oryza sativa L.) Under Normal and Water Stress Conditions

El-Aty, Mohamed S. Abd; Katta, Youssef.S.; El-Abd, Abd El Moaty B; Mahmoud, S. M.; Ibrahim, Omar M.; Eweda, Mohamed A.; El‐Saadony, Mohamed T.; AbuQamar, Synan F.; El‐Tarabily, Khaled A.; El-Tahan, Amira M.

doi:10.3389/fpls.2022.866742

Cited by 10 publications

(9 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, breeders use the combining ability to assess the breeding value of parental materials in hybrid production (Sprague and Tatum 1942 ). By identifying the combining ability of parents in phenotype plasticity, breeders can predict the performance of hybrid combinations, thereby enhancing the efficiency and stability of hybrid rice production (Abd El-Aty et al 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Exploration of quality variation and stability of hybrid rice under multi-environments

Chen,

Li,

et al. 2024

Mol Breeding

View full text Add to dashboard Cite

Improving quality is an essential goal of rice breeding and production. However, rice quality is not solely determined by genotype, but is also influenced by the environment. Phenotype plasticity refers to the ability of a given genotype to produce different phenotypes under different environmental conditions, which can be a representation of the stability of traits. Seven quality traits of 141 hybrid combinations, deriving from the test-crossing of 7 thermosensitive genic male sterile (TGMS) and 25 restorer lines, were evaluated at 5 trial sites with intermittent sowing of three to five in Southern China. In the Yangtze River Basin, it was observed that delaying the sowing time of hybrid rice combinations leads to an improvement in their overall quality. Twelve parents were identified to have lower plasticity general combing ability (GCA) values with increased ability to produce hybrids with a more stable quality. The parents with superior quality tend to exhibit lower GCA values for plasticity. The genome-wide association study (GWAS) identified 13 and 15 quantitative trait loci (QTLs) associated with phenotype plasticity and BLUP measurement, respectively. Notably, seven QTLs simultaneously affected both phenotype plasticity and BLUP measurement. Two cloned rice quality genes, ALK and GL7, may be involved in controlling the plasticity of quality traits in hybrid rice. The direction of the genetic effect of the QTL6 (ALK) on alkali spreading value (ASV) plasticity varies in different cropping environments. This study provides novel insights into the dynamic genetic basis of quality traits in response to different cropping regions, cultivation practices, and changing climates. These findings establish a foundation for precise breeding and production of stable and high-quality rice.

show abstract

Section: Introductionmentioning

confidence: 99%

Exploration of quality variation and stability of hybrid rice under multi-environments

Chen,

Li,

et al. 2024

Mol Breeding

View full text Add to dashboard Cite

show abstract

“…It is the most significant constraint for rice production in rainfed habitats (Nelson et al, 2014;Pandey and Shukla, 2015;Abd El-Aty et al, 2022b). For instance, it causes considerable crop damage and a yield loss of more than 70% compared with normal conditions (Vaghefi et al, 2011;Abd El-Aty et al, 2022c;Abd El-Aty et al, 2022d).…”

Section: Introductionmentioning

confidence: 99%

“…In Egypt, the rising population and limited water supply meant that even with increased rice production, the rate of food production lagged behind the demand (Dianga et al, 2020;Abd El-Aty et al, 2022c). Thus, the rice sector's crop production and yield performance in Egypt has been impressive in the last three decades.…”

Section: Introductionmentioning

confidence: 99%

Mode of gene action and heterosis for physiological, biochemical, and agronomic traits in some diverse rice genotypes under normal and drought conditions

et al. 2023

Self Cite

View full text Add to dashboard Cite

Water scarcity is a crucial environmental stress that constrains rice growth and production. Thus, breeding for developing high-yielding and drought-tolerant rice genotypes is decisive in sustaining rice production and ensuring global food security, particularly under stress conditions. To this end, this study was conducted to evaluate the effects of water deficit on 31 genotypes of rice (seven lines, viz., Puebla, Hispagran, IET1444, WAB1573, Giza177, Sakha101, and Sakha105, and three testers, viz., Sakha106, Sakha107, and Sakha108) and their 21 crosses produced by line × tester mating design under normal and water deficit conditions; this was to estimate the combining ability, heterosis, and gene action for some traits of physiological, biochemical, and yield components. This study was performed during the summer seasons of 2017 and 2018. The results showed that water deficit significantly decreased relative water content, total chlorophyll content, grain yield, and several yield attributes. However, osmolyte (proline) content and antioxidant enzyme activities (CAT and APX) were significantly increased compared with the control condition. Significant mean squares were recorded for the genotypes and their partitions under control and stress conditions, except for total chlorophyll under normal irrigation. Significant differences were also detected among the lines, testers, and line × tester for all the studied traits under both irrigation conditions. The value of the σ²GCA variance was less than the value of the σ²SCA variance for all the studied traits. In addition, the dominance genetic variance (σ2D) was greater than the additive genetic variance (σ2A) in controlling the inheritance of all the studied traits under both irrigation conditions; this reveals that the non-additive gene effects played a significant role in the genetic expression of the studied traits. The two parental genotypes (Puebla and Hispagran) were identified as good combiners for most physiological and biochemical traits, earliness, shortness, grain yield, and 1,000-grains weight traits. Additionally, the cross combinations Puebla × Sakha107, Hispagran × Sakha108, and Giza177 × Sakha107 were the most promising. These results demonstrated the substantial and desirable specific combining ability effects on all the studied traits, which suggested that it could be considered for use in rice hybrid breeding programs.

show abstract

“…Hybrid rice technology is one of the effective ways to increase rice production leading to self-sufficiency and facing overpopulation in Egypt. With the release of conventional cultivars, rice yield levels have reached a plateau that can be broken with this technique (Abd El-Aty et al, 2022). Commercial hybrids often produced between 15 to 20% more than the most acceptable inbred varieties grown in comparable conditions, which were attributed to "hybrid vigor" or "heterosis" from mating the two parents (El Sayed et al, 2021;Melandri et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Commercial hybrids often produced between 15 to 20% more than the most acceptable inbred varieties grown in comparable conditions, which were attributed to "hybrid vigor" or "heterosis" from mating the two parents (El Sayed et al, 2021;Melandri et al, 2021). The superiority of hybrid varieties over inbred varieties in terms of grain output, vigor, panicle weight, number of spikelets per panicle, and number of productive tillers are examples of how hybrids can benefit from heterosis (Abd El-Aty et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Development of Two Novel Photoperiod and Thermo-Sensitive Genic Male Sterile Lines in Rice (Oryza sativa L.)

Anis

Elmoghazy

Shehab

et al. 2022

Journal of Plant Production

View full text Add to dashboard Cite

Developing hybrid rice by two lines system under Egyptian conditions requires high performance lines. The promising Photoperiod and Thermo-sensitive Genic Male Sterile (PTGMS) lines A001S and G001S were developed by crossing, continuously inbred for six generations,and the selection depended onduration and tillering ability. F2 populations were segregated and fitted well to the ratio of 15:1 for pollen grains fertility trait, indicating the presence of digenic inheritance and epistatic dominant duplicate gene action control. The PTGMS line G001S had the most desirable characteristics for the hybrid rice breeders, with values of 19cm panicle length,13 primary branches panicle -1 , 8.5mm grain length, 2.9mm grain width, 1.9mm grain thicknessand 25g for 1000-grain weight. Both A001S and G001S were superiors of most studied traits to be good PTGMS lines for two-line hybrid seed production systems. Both linesexhibited a high rate of panicle exertion with values of 90.70 % and 94.30 % for A001S and G001S, respectively. The two lines were completely male sterile when sowing from 1 st to 20 th April. Still, their fertility alternated from completely sterile to partially fertile in late July when the temperature decreased and the day length was long. A001S x GSR1 and G001S x GSR9 new hybrid combinations were derived from the newlydeveloped PTGMS lines; A001S and G001S, with short duration, semi-dwarf and high tillering ability with a high yield potential of 80gplant -1 . For the panicle and grain traits, both hybrids exhibited good characteristics.Both hybrids showed favorable positive significant, and highly significant standard heterosis.

show abstract

The Combining Ability for Grain Yield and Some Related Characteristics in Rice (Oryza sativa L.) Under Normal and Water Stress Conditions

Cited by 10 publications

References 33 publications

Exploration of quality variation and stability of hybrid rice under multi-environments

Exploration of quality variation and stability of hybrid rice under multi-environments

Mode of gene action and heterosis for physiological, biochemical, and agronomic traits in some diverse rice genotypes under normal and drought conditions

Development of Two Novel Photoperiod and Thermo-Sensitive Genic Male Sterile Lines in Rice (Oryza sativa L.)

Contact Info

Product

Resources

About