Universidade Estadual do Norte Fluminense Darcy Ribeiro-UENF, Av. Alberto Lamego 2000, Parque Califórnia, Campos dos Goytacazes, RJ, 28.013-602, Brazil.
Sci Rep. 2023 Aug 18;13(1):13431. doi: 10.1038/s41598-023-40613-8.
Despite the relevance of the global scenario regarding the papaya (Carica papaya L.) trade, there is still a limited number of papaya cultivars with different fruit patterns. Therefore, it is essential to explore the genetic variability at all levels of the germplasm used in the development of new papaya cultivars to meet its marketing goal. Thus, this study measured and explored the potential of genetic variability based on related to fruit quality traits, of a population of papaya lines in the F generation through several statistical analyzes. For this, 97 inbred lines obtained using the Single Seed Descent method, resulting from a cross between the JS-12 and Sekati genotypes, both with Formosa fruit pattern, were evaluated. Results indicated there was genetic variability in the fruit quality. The traits that most contributed to the variability were related to the fruit shape. The diverse population of 97 inbred papaya lines in the F generation showed promise for producing commercial-sized fruits in Formosa, Intermediate, and Solo patterns. Additionally, the selection of inbred papaya lines based on fruit shape using morpho-anatomical traits does not compromise physical and chemical parameters related to fruit quality.
尽管木瓜（Carica papaya L.）贸易的全球情况具有重要意义，但仍有数量有限的木瓜品种具有不同的果实形态。因此，探索用于开发新木瓜品种的种质在所有水平上的遗传变异性至关重要，以实现其市场目标。因此，本研究通过多项统计分析，测量并探讨了与果实品质特性相关的遗传变异性潜力，该研究基于 F1 代的木瓜品系群体。为此，评估了 97 个通过单粒传代法获得的自交系，这些自交系是 Formosa 果实形态的 JS-12 和 Sekati 基因型之间杂交的结果。结果表明，果实品质存在遗传变异性。对变异贡献最大的性状与果实形状有关。F1 代的 97 个木瓜自交系群体表现出在 Formosa、Intermediate 和 Solo 模式下生产商业大小果实的潜力。此外，使用形态解剖学性状根据果实形状选择木瓜自交系不会影响与果实品质相关的物理和化学参数。
