中国甜柿及其在世界甜柿基因库中的地位

 柿（Diospyros kaki Thunb.）原产中国，但绝大多数为完全涩柿，中国原产完全甜柿（简称中国甜柿）仅在湖北、河南和安徽三省交界的大别山区有分布。主要介绍中国甜柿的栽培历史、地理分布及其变异类型，并重点对其生物学特性、自然脱涩特点及遗传规律等进行总结；此外，还对中国甜柿在世界甜柿的起源与进化、自然脱涩机理和遗传改良研究中的价值进行了阐述。

Characteristics of Chinese PCNA Types and Their Roles in Science and Industry of Oriental Persimmon

The oriental persimmon（Japanese persimmon or kaki），Diospyros kaki Thunb.，is believed to have originated in China. Pollination-constant and non-astringent persimmons native to China，simply called Chinese PCNA persimmons，are only distributed in Dabieshan Mountain around the junction of three provinces，Hubei，Henan and Anhui in central China. Here we review the studies of Chinese PCNA persimmons，including their cropping history，geographic distribution and some variations，especially the biological characteristics，the traits and rules of natural astringency-loss of fruit. In addition，it is also illustrated that Chinese PCNA persimmons played important roles in the researches on the origin and genetic relationship，the mechanism of natural astringency-loss，and the genetic breeding of the oriental persimmon in the world.