| 张意如,刘英,黄正金,吴雅琼,李维林,张春红.黑莓杂交F1代花和果实性状的遗传倾向及相关性研究 [J].中国南方果树,2026,55(4):211-219 |
| 黑莓杂交F1代花和果实性状的遗传倾向及相关性研究 |
| Genetic tendency and correlation analysis of flower and fruit traits in F1 hybrid progenies of blackberry |
| 投稿时间：2025-11-13 修订日期：2025-12-29 |
| DOI： |
| 中文关键词: 黑莓 F1杂交群体 遗传倾向 数量性状 相关性分析 |
| 英文关键词:Blackberry (Rubus spp.) F1 hybrid population Genetic tendency Quantitative traits Correlation analysis |
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| 中文摘要: |
| 【目的】探究黑莓F1杂交后代群体花性状和果实性状遗传倾向及性状间的相关性，为黑莓杂交育种中的亲本选配和提高育种效率提供理论参考。【方法】以黑莓‘自由’（♀）ב早黑’（♂）杂交所得F1群体145个单株为材料，测定F1群体花形态性状、果实外观及品质性状指标，进而对各性状进行遗传倾向解析和相关性分析。【结果】杂交F1群体花瓣形状主要依赖亲本遗传，花瓣颜色在后代单株中分离明显。果实性状遗传传递力介于34.12%~133.01%，其中仅可滴定酸含量遗传传递力超过100%。F1群体果实性状的变异系数为11.42%~46.29%，其中以可溶性固形物含量最小，而单果质量最大。此外，单果质量、小核果数目、果实硬度、葡萄糖含量变异系数均超过30%，果实性状在后代遗传中均呈连续正态分布，符合数量性状遗传规律。进一步对花和果实性状进行相关性分析，发现每花序花数和每穗单果数呈极显著正相关，花直径与果实外观性状指标呈极显著正相关。果实外观性状间存在显著正相关关系，葡萄糖和果糖含量也呈极显著正相关，且与可滴定酸含量呈负相关关系。【结论】黑莓F1群体单株花性状多依赖亲本遗传，果实性状分离较广且整体呈趋小变异，花性状与果实外观及品质性状相关性结果可为黑莓杂交后代优株选育提供一定理论依据。 |
| 英文摘要: |
| 【Objective】 This study aims to investigate the genetic predisposition of flower and fruit traits and their interrelationships in an F1 population of blackberry hybrids, thereby providing a theoretical foundation for parental selection and enhancing breeding efficiency in blackberry hybridization programs.【Method】 Using an F1 population comprising 145 individual plants derived from a cross between blackberry ‘Prime-Ark (R) Freedom’ (♀) and ‘Zaohei’ (♂), we measured various indicators related to floral morphology, fruit appearance, and fruit quality traits. Subsequently, the genetic tendencies of these traits were analyzed, along with correlation analyses among them. 【Result】The results of F1 population indicated that petal shape was primarily governed by parental inheritance, while petal color traits exhibited clear segregation among the individual plants of the F1 population. For fruit traits in the F1 population, the heritability estimates ranged from 34.12% to 133.01%, with only titratable acid content exceeding 100%. The coefficients of variation (CVs) for these traits varied between 11.42% and 46.29%, among which soluble solids content showed the smallest CV, while fruit quality exhibited the largest. In addition, the coefficients of variation for single fruit weight, number of small drupes, fruit hardness, and glucose content all exceeded 30%. The fruit traits in the offspring displayed continuous normal distributions, aligning with the inheritance patterns typical of quantitative traits. Further correlation analysis between floral and fruit traits indicated a highly significant positive correlation between the number of flowers per inflorescence and the number of fruits per cluster. Flower diameter exhibited a highly significant positive correlation with fruit appearance traits. Significant positive correlations were also observed among the fruit appearance traits themselves. Moreover, glucose and fructose contents were highly significantly positively correlated with each other, while both showed negative correlations with titratable acid content.【Conclusion】In the F1 population of blackberries, the floral traits of individual plants are largely dependent on parental inheritance, while the fruit traits show a wide range of segregation and generally tend to exhibit smaller variations. The correlation results between floral traits and fruit appearance as well as quality traits can provide a theoretical basis for the selection of superior hybrid progenies in blackberry breeding. |
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