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首页> 外文期刊>Genetica >Genetic changes in plant growth and their associations with chromosomes from Gossypium barbadense L. in G. hirsutum L
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Genetic changes in plant growth and their associations with chromosomes from Gossypium barbadense L. in G. hirsutum L

机译：植物生长的遗传变化及其与陆地棉中棉棒的染色体的关联

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摘要

Cotton (Gossypium spp.) plant growth is an important time-specific agronomic character that supports the development of squares, flowers, boll retention, and yield. With the use of a mixed linear model approach, we investigated 14 cotton chromosome substitution (CS-B) lines and their chromosome-specific F2 hybrids for genetic changes in plant growth that was measured during the primary flowering time under two environments. The changes in additive and dominance variances for plant height and number of mainstem nodes are reported, showing that additive effects for these two traits were a key genetic component after initial flowering occurred in the field. Time-specific genetic variance components were also detected where phenotypic values observed at time t were conditioned on the events occurring at time t − 1, demonstrating new genetic variations arising at several time intervals during plant growth. Results also revealed that plant height and number of nodes shared some common influence due to additive effects during plant development. With the comparative analyzes, chromosomes associated with the genetic changes in plant growth were detected. Therefore, these results should add new understanding of the genetics underlying these time-specific traits. Keywords Cotton - Plant height - Developmental genetics - Chromosome substitution line - Chromosome association Mention of trademark or proprietary product does not constitute a guarantee or warranty of the product by the United States Department of Agriculture and does not imply its approval to the exclusion of other products that may also be suitable.
机译：棉花（Gossypium spp。）植物的生长是重要的特定时间农艺性状，可支持正方形，花朵，铃铃的形成和产量的增长。利用混合线性模型方法，我们调查了14个棉花染色体替代（CS-B）品系及其染色体特定的F 2 杂种对初生开花过程中植物生长的遗传变化的影响。两个环境下的时间。报道了植物高度和主茎节数的加性和优势方差的变化，表明这两个性状的加性效应是田间初开花后的关键遗传成分。还检测了特定于时间的遗传方差成分，其中在时间t观察到的表型值以在时间t-1发生的事件为条件，表明在植物生长的几个时间间隔出现了新的遗传变异。结果还表明，在植物发育过程中，由于累加效应，植物的高度和节数均具有一些共同的影响。通过比较分析，发现了与植物生长的遗传变化相关的染色体。因此，这些结果应增加对这些特定时间特征的遗传学的新认识。关键词棉花-株高-发育遗传学-染色体替代品系-染色体结合物提及商标或专有产品并不构成美国农业部对该产品的保证或担保，并不意味着其被批准排除其他产品那可能也合适。

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