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首页> 外文期刊>Cotton Reseach Journal >Genetic Analysis of Some Quantitative Traits in Trihybrid Cross of Gossypium species
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Genetic Analysis of Some Quantitative Traits in Trihybrid Cross of Gossypium species

机译：棉属三杂交种某些数量性状的遗传分析

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摘要

Generation mean analysis involving Jive generations viz., parents (P_1 and P_2, hybrid (F_1) and their progeny (F_2 and F_3) of interspecific cross doubled {G. arboreum x G. anomahim} x G. barbadense was used to study the inheritance of seed cotton yield and its components in cotton. The estimates of C and D Scaling test for 14 characters indicated that both the scales were significant for all the traits except plant height and boll diameter for which only C test was significant. Both additive and dominance type of genetic effects were significant in all the characters except monopodia. The additive x additive (i) and dominance x dominance (I) gene interaction were significant for all the characters. Out of 14 traits analyzed the positive and significant magnitude of dominance x dominance gene interaction effect was observed for plant height, number of sympodia, boll number, seed index, lint weight, ginning percentage, seed cotton yield, locule and green boll damage percentage. It was revealed thatduplicate gene interaction was presefit in all the characters. The results suggest that the selection for the traits would be more fruitful if selection is delayed till dominance component is reduced due to selfing.
机译：使用涉及种间杂交的双亲{G. arboreum x G. anomahim} x G. barbadense的Jive世代，其亲本（P_1和P_2，杂种（F_1）及其后代（F_2和F_3））的世代均值分析来研究遗传对14个字符的C和D缩放试验的估计表明，除株高和棉铃直径外，所有性状的两个尺度均具有显着性，仅C显着。除单足动物外，其他所有性状的遗传效应类型均显着;加性x加性（i）和显性x显性（I）基因相互作用对所有性状均显着，在14个性状中分析了显性x显性的正值和显着性观察了株高，结实数，铃数，种子指数，皮棉重量，轧花率，籽棉产量，小叶和生铃损害率的基因互作效应。揭示在所有字符中都存在重复的基因相互作用。结果表明，如果选择推迟到由于自交而减少优势成分时，对性状的选择将会更有成果。

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