Genetic Analysis of Earliness Traits in Short Season Cotton (Gossypium hirsutum L.)
Inheritance and interrelationship of phenotype and genotype of earliness traits were evaluated in a diallel analysis involving six early-maturing parents. Date of first square (DFS), date of first flower (DFF), date of first open boll (DFOB), number of node first sympodial branch (NNFSB), and harves...
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KeAi Communications Co., Ltd.
2012-12-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311912604535 |
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| author | Mei-zhen SONG Shu-li FAN Ri-hong YUAN Chao-you PANG Shu-xun YU |
| author_facet | Mei-zhen SONG Shu-li FAN Ri-hong YUAN Chao-you PANG Shu-xun YU |
| author_sort | Mei-zhen SONG |
| collection | DOAJ |
| description | Inheritance and interrelationship of phenotype and genotype of earliness traits were evaluated in a diallel analysis involving six early-maturing parents. Date of first square (DFS), date of first flower (DFF), date of first open boll (DFOB), number of node first sympodial branch (NNFSB), and harvested rate before frost (HRBF) as earliness traits of six parents, 15 F1 hybrids and 15 F2 progenies were investigated from 2005 to 2008. The experiment design was a randomized complete block design with three replications. Additive, dominance and epistasis effects were analyzed with ADAA (additive-dominance-epistasis) model. HRBF, DFF, and DFOB showed significant additive genetic variances. Heritability estimates ranged from 0.088 (HN, narrow sense) and 0.416 (HNE, environment interaction) for HRBF, to 0.103 (HN) and 0.524 (HNE) for DFF, and to 0.187 (HN) and 0.519 (HNE) for DFOB. Dominance genetic effects for DFS, DFF, DFOB, and NNSFB were stronger than additive effects. Additive-by-additive epistatic effects for DFS, DFOB, and NNSFB were detected and affected by environment. Correlation analysis showed generally that HRBF had a significant negative genetic and phenotypic correlation with DFS, DFOB, and NNFSB; DFS had significant positive genetic and phenotypic correlations with DFF, DFOB, and NNFSB; significant positive genetic and phenotypic correlations were also detected between DFF and DFOB, DFF and NNFSB, DFOB and NNFSB. The results showed that the lower the node to the first fruiting branch and the shorter the plant, the earlier was the onset of squaring, flowering, and boll opening, the higher was the harvest rate before frost. Heredity of earliness traits among parents and their hybrids were also detected and parents A1, A2, B1, B2, and B3 could be used to improve earliness traits of short season cotton cultivars. |
| format | Article |
| id | doaj-art-b4b6a06abbc64fc8a8657eacd55d6d13 |
| institution | Kabale University |
| issn | 2095-3119 |
| language | English |
| publishDate | 2012-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj-art-b4b6a06abbc64fc8a8657eacd55d6d132025-08-20T03:58:50ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192012-12-0111121968197510.1016/S2095-3119(12)60453-5Genetic Analysis of Earliness Traits in Short Season Cotton (Gossypium hirsutum L.)Mei-zhen SONG0Shu-li FAN1Ri-hong YUAN2Chao-you PANG3Shu-xun YU4Cotton Research Institute, Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Ministry of Science and Technology, Anyang 455000, P.R. ChinaCotton Research Institute, Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Ministry of Science and Technology, Anyang 455000, P.R. ChinaCotton Research Institute, Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Ministry of Science and Technology, Anyang 455000, P.R. ChinaCotton Research Institute, Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Ministry of Science and Technology, Anyang 455000, P.R. ChinaCorrespondance YU Shu-xun, Tel: +86-372-2562201; Cotton Research Institute, Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Ministry of Science and Technology, Anyang 455000, P.R. ChinaInheritance and interrelationship of phenotype and genotype of earliness traits were evaluated in a diallel analysis involving six early-maturing parents. Date of first square (DFS), date of first flower (DFF), date of first open boll (DFOB), number of node first sympodial branch (NNFSB), and harvested rate before frost (HRBF) as earliness traits of six parents, 15 F1 hybrids and 15 F2 progenies were investigated from 2005 to 2008. The experiment design was a randomized complete block design with three replications. Additive, dominance and epistasis effects were analyzed with ADAA (additive-dominance-epistasis) model. HRBF, DFF, and DFOB showed significant additive genetic variances. Heritability estimates ranged from 0.088 (HN, narrow sense) and 0.416 (HNE, environment interaction) for HRBF, to 0.103 (HN) and 0.524 (HNE) for DFF, and to 0.187 (HN) and 0.519 (HNE) for DFOB. Dominance genetic effects for DFS, DFF, DFOB, and NNSFB were stronger than additive effects. Additive-by-additive epistatic effects for DFS, DFOB, and NNSFB were detected and affected by environment. Correlation analysis showed generally that HRBF had a significant negative genetic and phenotypic correlation with DFS, DFOB, and NNFSB; DFS had significant positive genetic and phenotypic correlations with DFF, DFOB, and NNFSB; significant positive genetic and phenotypic correlations were also detected between DFF and DFOB, DFF and NNFSB, DFOB and NNFSB. The results showed that the lower the node to the first fruiting branch and the shorter the plant, the earlier was the onset of squaring, flowering, and boll opening, the higher was the harvest rate before frost. Heredity of earliness traits among parents and their hybrids were also detected and parents A1, A2, B1, B2, and B3 could be used to improve earliness traits of short season cotton cultivars.http://www.sciencedirect.com/science/article/pii/S2095311912604535cottonearliness traitsinheritanceadditive effectdominant effectadditive-by-additive effect |
| spellingShingle | Mei-zhen SONG Shu-li FAN Ri-hong YUAN Chao-you PANG Shu-xun YU Genetic Analysis of Earliness Traits in Short Season Cotton (Gossypium hirsutum L.) Journal of Integrative Agriculture cotton earliness traits inheritance additive effect dominant effect additive-by-additive effect |
| title | Genetic Analysis of Earliness Traits in Short Season Cotton (Gossypium hirsutum L.) |
| title_full | Genetic Analysis of Earliness Traits in Short Season Cotton (Gossypium hirsutum L.) |
| title_fullStr | Genetic Analysis of Earliness Traits in Short Season Cotton (Gossypium hirsutum L.) |
| title_full_unstemmed | Genetic Analysis of Earliness Traits in Short Season Cotton (Gossypium hirsutum L.) |
| title_short | Genetic Analysis of Earliness Traits in Short Season Cotton (Gossypium hirsutum L.) |
| title_sort | genetic analysis of earliness traits in short season cotton gossypium hirsutum l |
| topic | cotton earliness traits inheritance additive effect dominant effect additive-by-additive effect |
| url | http://www.sciencedirect.com/science/article/pii/S2095311912604535 |
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