Combining ability and genetic components of yield characteristics, dry matter content, and total carotenoids in provitamin A cassava F1 cross-progeny
Cassava is an important root crop in sub-Saharan Africa, largely cultivated for its starchy edible roots. Biofortified cassava varieties with enhanced provitamin A carotenoid content (PVAC) developed through conventional breeding provide a solution for vitamin A deficiency among vulnerable communiti...
| Autores principales: | , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2020
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/171310 |
| _version_ | 1855536503476715520 |
|---|---|
| author | Parkes, Elizabeth Aina, Olufemi Kingsley, Akuwa Iluebbey, Peter Bakare, Moshood |
| author_browse | Aina, Olufemi Bakare, Moshood Iluebbey, Peter Kingsley, Akuwa Parkes, Elizabeth |
| author_facet | Parkes, Elizabeth Aina, Olufemi Kingsley, Akuwa Iluebbey, Peter Bakare, Moshood |
| author_sort | Parkes, Elizabeth |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Cassava is an important root crop in sub-Saharan Africa, largely cultivated for its starchy edible roots. Biofortified cassava varieties with enhanced provitamin A carotenoid content (PVAC) developed through conventional breeding provide a solution for vitamin A deficiency among vulnerable communities. The aim of this study was to use diallel analysis of six provitamin A cassava genotypes to determine the combining ability, genetic components, heritability, and heterosis of the most important yield characteristics and total carotenoids. Genetic variability for measured characteristics were evident. Fresh root yield was mainly determined by non-additive genetic effects, while dry matter content and total carotenoids were determined by additive effects. Total carotenoids were negatively correlated with fresh root yield, indicating that selection for higher provitamin A content could reduce yield. Mid and higher parent heterosis was seen in some of the crosses for fresh root yield, dry matter content, and total carotenoids. Narrow sense heritability was moderate for fresh root yield and dry matter content, and was high for total carotenoids. This study indicated that yield and dry matter content can be improved in provitamin A cassava but that increased provitamin A content may carry a yield penalty. |
| format | Journal Article |
| id | CGSpace171310 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1713102025-02-19T14:31:28Z Combining ability and genetic components of yield characteristics, dry matter content, and total carotenoids in provitamin A cassava F1 cross-progeny Parkes, Elizabeth Aina, Olufemi Kingsley, Akuwa Iluebbey, Peter Bakare, Moshood cassava retinol heterosis dry matter content roots yields Cassava is an important root crop in sub-Saharan Africa, largely cultivated for its starchy edible roots. Biofortified cassava varieties with enhanced provitamin A carotenoid content (PVAC) developed through conventional breeding provide a solution for vitamin A deficiency among vulnerable communities. The aim of this study was to use diallel analysis of six provitamin A cassava genotypes to determine the combining ability, genetic components, heritability, and heterosis of the most important yield characteristics and total carotenoids. Genetic variability for measured characteristics were evident. Fresh root yield was mainly determined by non-additive genetic effects, while dry matter content and total carotenoids were determined by additive effects. Total carotenoids were negatively correlated with fresh root yield, indicating that selection for higher provitamin A content could reduce yield. Mid and higher parent heterosis was seen in some of the crosses for fresh root yield, dry matter content, and total carotenoids. Narrow sense heritability was moderate for fresh root yield and dry matter content, and was high for total carotenoids. This study indicated that yield and dry matter content can be improved in provitamin A cassava but that increased provitamin A content may carry a yield penalty. 2020 2025-01-29T12:57:59Z 2025-01-29T12:57:59Z Journal Article https://hdl.handle.net/10568/171310 en Open Access MDPI Parkes, Elizabeth; Aina, Olufemi; Kingsley, Akuwa; Iluebbey, Peter; and Bakare, Moshood. 2020. Combining ability and genetic components of yield characteristics, dry matter content, and total carotenoids in provitamin A cassava F1 cross-progeny. Agronomy 10(12): 1850. https://doi.org/10.3390/agronomy10121850 |
| spellingShingle | cassava retinol heterosis dry matter content roots yields Parkes, Elizabeth Aina, Olufemi Kingsley, Akuwa Iluebbey, Peter Bakare, Moshood Combining ability and genetic components of yield characteristics, dry matter content, and total carotenoids in provitamin A cassava F1 cross-progeny |
| title | Combining ability and genetic components of yield characteristics, dry matter content, and total carotenoids in provitamin A cassava F1 cross-progeny |
| title_full | Combining ability and genetic components of yield characteristics, dry matter content, and total carotenoids in provitamin A cassava F1 cross-progeny |
| title_fullStr | Combining ability and genetic components of yield characteristics, dry matter content, and total carotenoids in provitamin A cassava F1 cross-progeny |
| title_full_unstemmed | Combining ability and genetic components of yield characteristics, dry matter content, and total carotenoids in provitamin A cassava F1 cross-progeny |
| title_short | Combining ability and genetic components of yield characteristics, dry matter content, and total carotenoids in provitamin A cassava F1 cross-progeny |
| title_sort | combining ability and genetic components of yield characteristics dry matter content and total carotenoids in provitamin a cassava f1 cross progeny |
| topic | cassava retinol heterosis dry matter content roots yields |
| url | https://hdl.handle.net/10568/171310 |
| work_keys_str_mv | AT parkeselizabeth combiningabilityandgeneticcomponentsofyieldcharacteristicsdrymattercontentandtotalcarotenoidsinprovitaminacassavaf1crossprogeny AT ainaolufemi combiningabilityandgeneticcomponentsofyieldcharacteristicsdrymattercontentandtotalcarotenoidsinprovitaminacassavaf1crossprogeny AT kingsleyakuwa combiningabilityandgeneticcomponentsofyieldcharacteristicsdrymattercontentandtotalcarotenoidsinprovitaminacassavaf1crossprogeny AT iluebbeypeter combiningabilityandgeneticcomponentsofyieldcharacteristicsdrymattercontentandtotalcarotenoidsinprovitaminacassavaf1crossprogeny AT bakaremoshood combiningabilityandgeneticcomponentsofyieldcharacteristicsdrymattercontentandtotalcarotenoidsinprovitaminacassavaf1crossprogeny |