B． 核果类果树(stone fruit trees) ： 按植物学概念， 这类果 树的果实是真果， 由子房发育而成， 有明显的外、 中、 内三层果皮； 外果皮薄， 中果皮肉质， 是食用...
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The apricot belongs to the stone fruit. It is originally produced in China and gerplasm resources are extremely rich.
杏为核果类果树，原产于中国，种质资源十分丰富。
参考来源 - 杏种质资源亲缘关系及分类地位的ISSR和SSR分子标记研究·2,447,543篇论文数据，部分数据来源于NoteExpress
指出了核果类果树扦插繁殖的现状以及今后的发展趋势。
The current situation in cuttings and the development tendency of cutting propagation in drupe fruit tree is indicated.
因此，建立和完善有效的遗传转化再生系统就成为开展核果类果树在这一领域研究的关键。
Therefore, the establishment and the consummation effective genetic transformation regeneration system becomes the development drupes fruit tree in this area research key.
最后根据ITS基因树并结合各属的形态特征及地理分布讨论了核果类果树的进化和分类问题。
The evolutional and taxonomic relationships of stone fruits were discussed based on the phylogenetic analysis of its sequences, morphological characters and geographical distribution.
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