1
|
Abd El-Aty MS, Al-Ameer MA, Kamara MM, Elmoghazy MM, Ibrahim OM, Al-Farga A, El-Tahan AM. Evaluation of genetic gains of some quantitative characters in Egyptian cotton cross (Giza 86 × Menoufi) under water deficit stress. Sci Rep 2022; 12:15227. [PMID: 36075945 PMCID: PMC9458738 DOI: 10.1038/s41598-022-18966-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/23/2022] [Indexed: 11/09/2022] Open
Abstract
This work was carried out to select cotton genotypes adapted to semi-arid climate conditions cultivated under irrigation for high yields and the standards of the fiber quality properties required by the textile industry. Also to determine the predicted and realized gains from different selection indices to improve some economic characters under water stress conditions. Except for lint percentage and Pressley index, F4 generation reduced PCV and GCV values for all studied characters due to reduction in genetic variability and heterozygosity due to different selection procedures that exhausted a significant part of variability. Except for fiber length and micronaire reading, mean performance in the F4 generation was revealed to be higher than those in the F3 generation for all studied characters. However, micronaire reading was lower (desirable) in F4 than F3 generation. Generally, genotypic correlations were higher than phenotypic correlations. Direct selection for lint index (Ped.3) was the most efficient in improving lint cotton yield/plant and bolls/plant. However, the multiplicative index involving all studied characters (I.5) exhibited the highest values for boll weight. Also, the Ped.2 index (direct selection for lint percentage) proved to be the most efficient in improving seed and lint indexes. Direct selection for lint cotton yield/plant (Ped.1) could produce the highest desirable values for lint percentage and seed per boll with a relatively reasonable yield. A selection index involving yield and its components (I.3) is recommended in improving uniformity index, fiber strength, and micronaire reading. The superior five families released from these indices in F4 generation exceeded the better parent for lint cotton yield/plant, bolls/plant, boll weight, seeds/boll, lint index, and reasonable fiber traits. These families could be continued to further generations as breeding material for developing water deficit tolerant genotypes.
Collapse
Affiliation(s)
- Mohamed S Abd El-Aty
- Agronomy Department, Faculty of Agriculture, Kafr El-Sheikh University, P.O. 33516, Kafr El-Shiekh, Egypt
| | - Mohamed A Al-Ameer
- Cotton Breeding Department, Cotton Research Institute, Agriculture Research Center, Giza, Egypt
| | - Mohamed M Kamara
- Agronomy Department, Faculty of Agriculture, Kafr El-Sheikh University, P.O. 33516, Kafr El-Shiekh, Egypt
| | - Mohamed M Elmoghazy
- Cotton Breeding Department, Cotton Research Institute, Agriculture Research Center, Giza, Egypt
| | - Omar M Ibrahim
- Plant Production Department, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, SRTA-City, Borg El Arab, Alexandria, Egypt
| | - Ammar Al-Farga
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Amira M El-Tahan
- Plant Production Department, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, SRTA-City, Borg El Arab, Alexandria, Egypt.
| |
Collapse
|
2
|
Abd El-Aty MS, Katta YS, El-Abd AEMB, Mahmoud SM, Ibrahim OM, Eweda MA, El-Saadony MT, AbuQamar SF, El-Tarabily KA, El-Tahan AM. The Combining Ability for Grain Yield and Some Related Characteristics in Rice ( Oryza sativa L.) Under Normal and Water Stress Conditions. FRONTIERS IN PLANT SCIENCE 2022; 13:866742. [PMID: 35873955 PMCID: PMC9305714 DOI: 10.3389/fpls.2022.866742] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/13/2022] [Indexed: 05/11/2023]
Abstract
Drought is considered a major threat to rice production. This study aimed to determine the effects of drought stress on the estimates of heterosis and the combining ability of rice genotypes for the number of days to 50% heading, plant height, number of panicles per plant, panicle length, number of filled grains per panicle, and grain yield per plant. Field experiments were conducted at the Rice Research and Training Center, Kafr El Sheikh, Egypt, during the rice-growing season in 2018 and 2019. Eight rice genotypes (Giza178, Giza179, Sakha106, Sakha107, Sakha108, WAB1573, NERICA4, and IET1444) were crossed in a half-diallel cross in the rice-growing season in 2018, which yielded a wide range of variability in numerous agronomic traits and drought tolerance measurements. In 2019, these parents and their 28 F1 crosses were produced by employing a three-replication randomized complete block design under normal and water stress conditions. The results showed remarkable differences across the studied genotypes under normal and water stress conditions. Under both conditions, Sakha107 was the best general combiner for earliness and short stature. Giza179 and Sakha108 were the best general combiners for grain yield per plant and one or more of its characteristics. Furthermore, in both normal and water stress conditions, Giza179 exhibited the highest general combining ability effects for all attributes that were evaluated. Under normal and water stress conditions, the Giza179 × Sakha107 cross demonstrated substantial and desirable specific combining ability effects on all the examined traits, which suggested that it could be considered for use in rice hybrid breeding programs. Therefore, we recommend that these vital indirect selection criteria to be considered for improving rice grain yield under drought conditions.
Collapse
Affiliation(s)
- Mohamed S. Abd El-Aty
- Department of Agronomy, Faculty of Agriculture, Kafr El Sheikh University, Kafr El-Sheikh, Egypt
| | - Youssef S. Katta
- Department of Agronomy, Faculty of Agriculture, Kafr El Sheikh University, Kafr El-Sheikh, Egypt
| | - Abd El Moaty B. El-Abd
- Rice Research and Training Center, Agricultural Research Center, Field Crops Research Institute, Kafr El-Sheikh, Egypt
| | - Samiha M. Mahmoud
- Rice Research and Training Center, Agricultural Research Center, Field Crops Research Institute, Kafr El-Sheikh, Egypt
| | - Omar M. Ibrahim
- Department of Plant Production, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, SRTA-City, Alexandria, Egypt
| | - Mohamed A. Eweda
- Department of Plant Production, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, SRTA-City, Alexandria, Egypt
| | - Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Synan F. AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
- *Correspondence: Synan F. AbuQamar,
| | - Khaled A. El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
- Khalifa Center for Genetic Engineering and Biotechnology, United Arab Emirates University, Al-Ain, United Arab Emirates
- Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
- Khaled A. El-Tarabily,
| | - Amira M. El-Tahan
- Department of Plant Production, Arid Lands Cultivation Research Institute, The City of Scientific Research and Technological Applications, SRTA-City, Alexandria, Egypt
| |
Collapse
|
3
|
Lu X, Zhou Z, Yuan Z, Zhang C, Hao Z, Wang Z, Li M, Zhang D, Yong H, Han J, Li X, Weng J. Genetic Dissection of the General Combining Ability of Yield-Related Traits in Maize. FRONTIERS IN PLANT SCIENCE 2020; 11:788. [PMID: 32793248 PMCID: PMC7387702 DOI: 10.3389/fpls.2020.00788] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/18/2020] [Indexed: 05/27/2023]
Abstract
Maize yield components including row number, kernel number per row, kernel thickness, kernel width, kernel length, 100-kernel weight, and volume weight affect grain yield directly. Previous studies mainly focused on dissecting the genetic basis of per se performances for yield-related traits, but the genetic basis of general combining ability (GCA) for these traits is still unclear. In the present study, 328 RILs were crossed as males to two testers according to the NCII mating design, resulting in a hybrid panel composed of 656 hybrids. Both the hybrids and parental lines were evaluated in four environments in 2015 and 2016. Correlation analysis showed the performances of GCA effects were significantly correlated to the per se performances of RILs for all yield-related traits (0.17 ≤ r ≤ 0.64, P > 0.01). Only 17 of 95 QTL could be detected for both per se performances of RILs and GCA effects for eight yield-related traits. The QTL qKN7-1 and qHKW1-3, which could explain more than 10% of the variation in the GCA effects of KN and HKW, were also detected for per se performances for the traits. The pleiotropic loci qRN3-1 and qRN6, which together explained 14.92% of the observed variation in GCA effects for RN, were associated with the GCA effects of KW and HKW, but not with per se performances for these traits. In contrast, Incw1, which was related to seed weight in maize, was mapped to the region surrounding MK2567 at the qHKW5-2 locus, but no GCA effect was detected. The QTL identified in present study for per se performances and corresponding GCA effects for yield-related traits might be useful for maize hybrid breeding.
Collapse
Affiliation(s)
- Xin Lu
- College of Agriculture, Northeast Agricultural University, Harbin, China
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhiqiang Zhou
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhaohui Yuan
- College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Chaoshu Zhang
- College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Zhuanfang Hao
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhenhua Wang
- College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Mingshun Li
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Degui Zhang
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hongjun Yong
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jienan Han
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xinhai Li
- College of Agriculture, Northeast Agricultural University, Harbin, China
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jianfeng Weng
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China
| |
Collapse
|