Early selection for drought tolerance in popcorn based on gene effects estimated in seedlings
Low rainfall rates are becoming increasingly frequent because of climate change, causing droughts and threatening world food security. For popcorn, drought is the most limiting abiotic factor for plant’s growth and development. Thus, the water deficit directly impacts for crop productivity. Based on...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-07-01
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| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1203972/full |
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| author | Carolina Macedo Carvalho Shahid Khan Shahid Khan Antônio Teixeira do Amaral Junior Valter Jário de Lima José Gabriel de Souza Silva Lara Moreira Catarino Fuly Jhean Torres Leite Divino Rosa dos Santos Junior Flávia Nicácio Viana Rosenilda de Souza Henrique Duarte Vieira Samuel Henrique Kamphorst |
| author_facet | Carolina Macedo Carvalho Shahid Khan Shahid Khan Antônio Teixeira do Amaral Junior Valter Jário de Lima José Gabriel de Souza Silva Lara Moreira Catarino Fuly Jhean Torres Leite Divino Rosa dos Santos Junior Flávia Nicácio Viana Rosenilda de Souza Henrique Duarte Vieira Samuel Henrique Kamphorst |
| author_sort | Carolina Macedo Carvalho |
| collection | DOAJ |
| description | Low rainfall rates are becoming increasingly frequent because of climate change, causing droughts and threatening world food security. For popcorn, drought is the most limiting abiotic factor for plant’s growth and development. Thus, the water deficit directly impacts for crop productivity. Based on knowledge of the genetic basis of traits involved in stages of popcorn germination and seedling development under water stress, genotypes with potential for adaptation to adverse growing conditions can be selected early. Therefore, data on genetic effects and combining ability of 10 popcorn parents were compiled to propose breeding strategies for the development of cultivars with greater adaptation to water stress in the early stages. Forty-five diallel hybrids were evaluated under two different water regimes, that is, water stress and full irrigation. This corresponded to a water retention capacity of 25% and 70% of the germination paper. The plants were watered daily as needed for seven days. A range of factors were evaluated, that is, germination traits including the germination speed index and germination on the seventh day; shoot traits including length and dry weight; and root system including length, dry weight, root-to-shoot ratio, maximum root number, root network area, specific and root network length, and root volume. Breeding for drought adaption in the early stages of popcorn development can be successful when hybrids are used, because of the genetic effects of dominance (ϕs). These control the traits evaluated at the seedling stage. The combinations L61 x P2 and L71 x P3 were recommended, in view of the more successful performance estimated for traits related to the shoot and root system. |
| first_indexed | 2024-03-13T01:47:46Z |
| format | Article |
| id | doaj.art-974084dd3f0d40f3884df396890ebdd5 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-03-13T01:47:46Z |
| publishDate | 2023-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-974084dd3f0d40f3884df396890ebdd52023-07-03T06:31:28ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-07-011410.3389/fpls.2023.12039721203972Early selection for drought tolerance in popcorn based on gene effects estimated in seedlingsCarolina Macedo Carvalho0Shahid Khan1Shahid Khan2Antônio Teixeira do Amaral Junior3Valter Jário de Lima4José Gabriel de Souza Silva5Lara Moreira Catarino Fuly6Jhean Torres Leite7Divino Rosa dos Santos Junior8Flávia Nicácio Viana9Rosenilda de Souza10Henrique Duarte Vieira11Samuel Henrique Kamphorst12Laboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilCrop Science Department, Crops Environment and Land Use Programme, Carlow, IrelandLaboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Fitotecnia, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Fitotecnia, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLaboratório de Melhoramento Genético Vegetal, Centro de Ciências e Tecnologias Agropecuárias (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Campos dos Goytacazes, BrazilLow rainfall rates are becoming increasingly frequent because of climate change, causing droughts and threatening world food security. For popcorn, drought is the most limiting abiotic factor for plant’s growth and development. Thus, the water deficit directly impacts for crop productivity. Based on knowledge of the genetic basis of traits involved in stages of popcorn germination and seedling development under water stress, genotypes with potential for adaptation to adverse growing conditions can be selected early. Therefore, data on genetic effects and combining ability of 10 popcorn parents were compiled to propose breeding strategies for the development of cultivars with greater adaptation to water stress in the early stages. Forty-five diallel hybrids were evaluated under two different water regimes, that is, water stress and full irrigation. This corresponded to a water retention capacity of 25% and 70% of the germination paper. The plants were watered daily as needed for seven days. A range of factors were evaluated, that is, germination traits including the germination speed index and germination on the seventh day; shoot traits including length and dry weight; and root system including length, dry weight, root-to-shoot ratio, maximum root number, root network area, specific and root network length, and root volume. Breeding for drought adaption in the early stages of popcorn development can be successful when hybrids are used, because of the genetic effects of dominance (ϕs). These control the traits evaluated at the seedling stage. The combinations L61 x P2 and L71 x P3 were recommended, in view of the more successful performance estimated for traits related to the shoot and root system.https://www.frontiersin.org/articles/10.3389/fpls.2023.1203972/fulldominance effectshybridswater stressdroughtZea mays L. Everta |
| spellingShingle | Carolina Macedo Carvalho Shahid Khan Shahid Khan Antônio Teixeira do Amaral Junior Valter Jário de Lima José Gabriel de Souza Silva Lara Moreira Catarino Fuly Jhean Torres Leite Divino Rosa dos Santos Junior Flávia Nicácio Viana Rosenilda de Souza Henrique Duarte Vieira Samuel Henrique Kamphorst Early selection for drought tolerance in popcorn based on gene effects estimated in seedlings Frontiers in Plant Science dominance effects hybrids water stress drought Zea mays L. Everta |
| title | Early selection for drought tolerance in popcorn based on gene effects estimated in seedlings |
| title_full | Early selection for drought tolerance in popcorn based on gene effects estimated in seedlings |
| title_fullStr | Early selection for drought tolerance in popcorn based on gene effects estimated in seedlings |
| title_full_unstemmed | Early selection for drought tolerance in popcorn based on gene effects estimated in seedlings |
| title_short | Early selection for drought tolerance in popcorn based on gene effects estimated in seedlings |
| title_sort | early selection for drought tolerance in popcorn based on gene effects estimated in seedlings |
| topic | dominance effects hybrids water stress drought Zea mays L. Everta |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1203972/full |
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