Future cotton production systems need improved fiber quality to meet global market demands and provide the textile industry with high‐quality fiber. To achieve this, cotton (Gossypium hirsutum L.) breeding programs must develop cultivars that overcome the negative relationship between agronomic performance and fiber quality. Since 1935, the USDA‐ARS Pee Dee germplasm enhancement program has prioritized improving fiber quality while also maintaining or enhancing agronomic performance. Along with a number of other breeding programs, the Pee Dee program documented that the negative relationship between agronomic performance and fiber quality is most often caused by genetic linkage. Several of these breeding programs have demonstrated that the negative genetic linkage can be overcome. In this study, we test the hypothesis that three Pee Dee germplasm lines previously identified as rare recombinants can generate populations with a decreased negative relationship between agronomic performance and fiber quality. The results suggest that two of the three Pee Dee germplasm lines generate populations with a decreased negative relationship and presumably transmit beneficial allelic combinations for lint percent and fiber quality traits in coupling phase linkage with one another or fixed in offspring.

中文翻译：

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研究十个棉花育种种群的农艺性能与纤维品质之间的关系

未来的棉花生产系统需要提高纤维质量，以满足全球市场需求，并为纺织业提供高质量的纤维。为此，棉花（陆地棉）L.）育种计划必须开发能够克服农艺性能与纤维品质之间负相关关系的品种。自1935年以来，USDA-ARS小便种质改良计划一直优先考虑改善纤维质量，同时保持或提高农艺性能。Pee Dee计划与许多其他育种计划一起证明，农艺性能和纤维品质之间的负面关系通常是由遗传连锁引起的。这些育种计划中的几个已经证明，可以克服负面的遗传联系。在这项研究中，我们检验了以下假设：三个先前被确定为稀有重组体的小便迪迪种质系可以产生种群，其农艺性能和纤维品质之间的负相关性降低。