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首页> 外文会议>Conference of the International Society of Sugar Cane Technologists >QUANTITATIVE TRAIT ALLELE (QTA) FOR YIELD COMPONENTS IN A MODERN SUGARCANE CULTIVAR
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QUANTITATIVE TRAIT ALLELE (QTA) FOR YIELD COMPONENTS IN A MODERN SUGARCANE CULTIVAR

机译：现代甘蔗品种中的产量组分的定量特质等位基因（QTA）

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An extensive Quantitative Trait Allele (QTA) mapping study, based on 300 selfed progeny of the cultivar R570, was undertaken using more than 1000 AFLP markers. The genetic map gave access to about half of the genome studied. The population was evaluated in two replicated trials for yield components related to several morphological and technological traits recorded in two successive crop-cycles. Numerous QTAs were found at P = 5 x 10~(-3), of which only one fourth might possibly be artefactual due tomere chance, depending on P. Their individual size effect ranged between 3% and 7% of the whole variation. QTA stability across years was improved when limiting threshold stringency. Epistatic interactions were also explored by looking for di-genic interactions at P = (5 x 10~(-3))~2. Altogether the putative genetic factors revealed here explained from 30% to 55% of the total phenotypic variation depending on the trait. This is the first extensive QTA mapping study performed in cultivated sugarcane.
机译：大量的定量性状等位基因（QTA）测绘研究的基础上，品种R570的300自交后代，用超过1000个AFLP标记进行。遗传图谱给访问有关基因组的一半研究。人口在与记录在两个连续的作物周期数形态和技术特征产量构成两个已复制试验中进行评估。众多QTAs分别以P实测值= 5×10（-3），其中只有四分之一有可能会是假象由于tomere机会，这取决于P. 3％，并且整个变化的7％之间它们的个别尺寸效应范围内。限制门槛严格当跨过年QTA稳定性提高。上位相互作用也通过以P寻找二核不相互作用探索=（5×10〜（-3））〜2。共推定的遗传因子发现这里从30％解释根据该性状的总表型变异的55％。这是在种植甘蔗进行第一次广泛的QTA测绘研究。

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