Peaches Preceded Humans: Fossil Evidence from SW China
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作者: | Su T | ||||||||
刊物名称: | Scientific Reports | ||||||||
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论文题目英文: | Peaches Preceded Humans: Fossil Evidence from SW China | ||||||||
年: | Nov 2015 | ||||||||
卷: | 5 | ||||||||
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页: | 16794 | ||||||||
联系作者: | Su T; Zhou ZK | ||||||||
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影响因子: | 5.578 | ||||||||
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摘要: | Peach (Prunus persica, Rosaceae) is an extremely popular tree fruit worldwide, with an annual production near 20 million tons. Peach is widely thought to have origins in China, but its evolutionary history is largely unknown. The oldest evidence for the peach has been Chinese archaeological records dating to 8000–7000 BP. Here, we report eight fossil peach endocarps from late Pliocene strata of Kunming City, Yunnan, southwestern China. The fossils are identical to modern peach endocarps, including size comparable to smaller modern varieties, a single seed, a deep dorsal groove, and presence of deep pits and furrows. These fossils show that China has been a critical region for peach evolution since long before human presence, much less agriculture. Peaches evolved their modern morphology under natural selection, presumably involving large, frugivorous mammals such as primates. Much later, peach size and variety increased through domestication and breeding. | ||||||||
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