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Domestication Syndrome in Caimito (Chrysophyllum cainito L.): Fruit and Seed Characteristics.
Economic Botany ( IF 1.7 ) Pub Date : 2010-05-21 , DOI: 10.1007/s12231-010-9121-4
Ingrid M. Parker , Isis López , Jennifer J. Petersen , Natalia Anaya , Luis Cubilla-Rios , Daniel Potter

Domestication Syndrome in Caimito (Chrysophyllum cainitoL.): Fruit and Seed Characteristics: The process of domestication is understudied and poorly known for many tropical fruit tree crops. The star apple or caimito tree (Chrysophyllum cainito L., Sapotaceae) is cultivated throughout the New World tropics for its edible fruits. We studied this species in central Panama, where it grows wild in tropical moist forests and is also commonly cultivated in backyard gardens. Using fruits collected over two harvest seasons, we tested the hypothesis that cultivated individuals of C. cainito show distinctive fruit and seed characteristics associated with domestication relative to wild types. We found that cultivated fruits were significantly and substantially larger and allocated more to pulp and less to exocarp than wild fruits. The pulp of cultivated fruits was less acidic; also, the pulp had lower concentrations of phenolics and higher concentrations of sugar. The seeds were larger and more numerous and were less defended with phenolics in cultivated than in wild fruits. Discriminant Analysis showed that, among the many significant differences, fruit size and sugar concentration drove the great majority of the variance distinguishing wild from cultivated classes. Variance of pulp phenolics among individuals was significantly higher among wild trees than among cultivated trees, while variance of fruit mass and seed number was significantly higher among cultivated trees. Most traits showed strong correlations between years. Overall, we found a clear signature of a domestication syndrome in the fruits of cultivated caimito in Panama.

中文翻译:

Caimito (Chrysophyllum cainito L.) 的驯化综合症:果实和种子特征。

Caimito (Chrysophyllum cainitoL.) 的驯化综合症:果实和种子特征:许多热带果树作物的驯化过程未被充分研究并且鲜为人知。星苹果或 caimito 树 (Chrysophyllum cainito L., Sapotaceae) 因其可食用的果实而在整个新大陆热带地区种植。我们在巴拿马中部研究了这个物种,它在热带潮湿的森林中野生生长,也通常在后院花园中种植。使用在两个收获季节收集的果实,我们测试了以下假设:C. cainito 的栽培个体显示出与野生类型相关的驯化相关的独特果实和种子特征。我们发现,与野生水果相比,栽培水果明显更大,分配给果肉的数量更多,分配给外果皮的数量更少。栽培水果的果肉酸性较低;此外,果肉的酚类物质浓度较低,糖浓度较高。与野生果实相比,栽培的种子更大、数量更多,酚类物质的保护作用更低。判别分析表明,在许多显着差异中,果实大小和糖浓度驱动了区分野生和栽培类的绝大多数差异。个体间果肉酚类物质的差异在野生树中显着高于栽培树,而在栽培树中果实质量和种子数的差异显着高于栽培树。大多数特征在年份之间表现出很强的相关性。总体而言,我们在巴拿马栽培的 caimito 果实中发现了明显的驯化综合征特征。果肉的酚类物质浓度较低,糖浓度较高。与野生果实相比,栽培的种子更大、数量更多,酚类物质的保护作用更低。判别分析表明,在许多显着差异中,果实大小和糖浓度驱动了区分野生和栽培类的绝大多数差异。个体间果肉酚类物质的差异在野生树中显着高于栽培树,而在栽培树中果实质量和种子数的差异显着高于栽培树。大多数特征在年份之间表现出很强的相关性。总的来说,我们在巴拿马栽培的 caimito 果实中发现了明显的驯化综合征特征。果肉的酚类物质浓度较低,糖浓度较高。与野生果实相比,栽培的种子更大、数量更多,酚类物质的保护作用更低。判别分析表明,在许多显着差异中,果实大小和糖浓度驱动了区分野生和栽培类的绝大多数差异。个体间果肉酚类物质的差异在野生树中显着高于栽培树,而在栽培树中果实质量和种子数的差异显着高于栽培树。大多数特征在年份之间表现出很强的相关性。总体而言,我们在巴拿马栽培的 caimito 果实中发现了明显的驯化综合征特征。与野生果实相比,栽培的种子更大、数量更多,酚类物质的保护作用更低。判别分析表明,在许多显着差异中,果实大小和糖浓度驱动了区分野生和栽培类的绝大多数差异。个体间果肉酚类物质的差异在野生树中显着高于栽培树,而在栽培树中果实质量和种子数的差异显着高于栽培树。大多数特征在年份之间表现出很强的相关性。总体而言,我们在巴拿马栽培的 caimito 果实中发现了明显的驯化综合征特征。与野生果实相比,栽培的种子更大、数量更多,酚类物质的保护作用更低。判别分析表明,在许多显着差异中,果实大小和糖浓度驱动了区分野生和栽培类的绝大多数差异。个体间果肉酚类物质的差异在野生树中显着高于栽培树,而在栽培树中果实质量和种子数的差异显着高于栽培树。大多数特征在年份之间表现出很强的相关性。总体而言,我们在巴拿马栽培的 caimito 果实中发现了明显的驯化综合征特征。水果大小和糖浓度驱动了区分野生和栽培类别的大部分差异。个体间果肉酚类物质的差异在野生树中显着高于栽培树,而在栽培树中果实质量和种子数的差异显着高于栽培树。大多数特征在年份之间表现出很强的相关性。总体而言,我们在巴拿马栽培的 caimito 果实中发现了明显的驯化综合征特征。水果大小和糖浓度驱动了区分野生和栽培类别的大部分差异。个体间果肉酚类物质的差异在野生树中显着高于栽培树,而在栽培树中果实质量和种子数的差异显着高于栽培树。大多数特征在年份之间表现出很强的相关性。总体而言,我们在巴拿马栽培的 caimito 果实中发现了明显的驯化综合征特征。大多数特征在年份之间表现出很强的相关性。总体而言,我们在巴拿马栽培的 caimito 果实中发现了明显的驯化综合征特征。大多数特征在年份之间表现出很强的相关性。总体而言,我们在巴拿马栽培的 caimito 果实中发现了明显的驯化综合征特征。
更新日期:2019-11-01
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