The role of homegardens and forest ecosystems for domestication and conservation of Ziziphus spina-christi (L.) Willd. in the Nuba Mountains, Sudan
The role of homegardens and forest ecosystems for domestication and conservation of Ziziphus spina-christi (L.) Willd. in the Nuba Mountains, Sudan
复制标题
苏丹努巴山区家庭花园和森林生态系统对枣树 (Ziziphus spina-christi (L ) Willd) 驯化和保护的作用
DOI：
10.1007/s10722-014-0124-3
复制
发表时间：
2014
影响因子：
2
通讯作者：
Jens Gebauer
中科院分区：
文献类型：
--
作者：
Martin Wiehle;Kathleen Prinz;Katja Kehlenbeck;Sven Goenster;Seifeldin Ali Mohamed;Andreas Buerkert;Jens Gebauer
人类的反复驯化过程，如选择、易位和栽培，会影响树种的形态和遗传多样性。由于这些物种中的许多也发生在人类创造的家庭花园（HG），因此这种类型的农业生态系统代表了研究这种驯化过程的理想环境。受威胁的本土果树枣（Ziziphus spina-christians）发生在苏丹努巴山脉的HGs和森林中，因此被选为模式种。对五个地点进行了抽样调查，并确定了250棵树木的地理位置。每个地点又细分为HG和森林地点。对形态性状和扩增片段长度多态性的差异进行了评估，以研究地点和地点之间的变异。树状参数和果实形态的多样性很高，不同地点之间差异显着。环境参数影响测树和果实大小，但应用回归模型的解释力低。虽然在统计上不显着，平均水果措施不断大于在森林中的温室气体。HG样品具有较高的遗传多样性。较大的树形和果实形态特征可能是由于更好的生长条件，在HG和/或人类选择的种质。这与HGs中较高的遗传多样性一致，这可能是来自不同来源的种质混合种植在HGs中的结果。高遗传多样性的HGs表明，这些作为有价值的点改良种质和农场保护的目的。
Iterative domestication processes by humans such as selection, translocation and cultivation are known to affect the morphological and genetic diversity of tree species. Since many of these species occur also in human-created homegardens (HG) this type of agroecosystem therefore represents an ideal setting to study such domestication processes. The threatened indigenous fruit treeZiziphus spina-christioccurs in HGs and forests of the Nuba Mountains, Sudan, and was therefore selected as a model species. Five locations were sampled and the geographical position of 250 trees determined. Each location was subdivided into HG and forest sites. The diversities of morphological traits and amplified fragment length polymorphisms were assessed to study variation within and among locations and sites. Diversity of dendrometric parameters and fruit morphometries was high and differed significantly among locations. Environmental parameters affected dendrometry and fruit size, but applied regression models were of low explanatory power. Although statistically not significant, mean fruit measures were continuously larger in HGs than in forests. Higher genetic diversity was observed in HG samples. Larger dendrometric and fruit morphometric traits are likely to result from better growing conditions in HGs and/or human selection of germplasm. This is in line with the higher genetic diversity in HGs which may be a consequence of the admixture of germplasm from different origins planted in HGs.Z.spina-christiunderwent incipient steps of domestication. High genetic diversity in HGs suggests those as valuable spots of improved germplasm and for on-farm conservation purposes.
登录
查看更多内容
影响因子：
3.3
作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
通讯作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
布基纳法索和尼日尔非洲牧草木材密度的遗传变异及其与树木生长的相关性
影响因子：
3
作者：
C. Sotelo Montes;J. Weber
通讯作者：
J. Weber
贝宁（西非）不同气候带的猴面包树（Adansonia digitalata）种群的遗传和形态多样性模式。
影响因子：
4.2
作者：
A. Assogbadjo;T. Kyndt;B. Sinsin;G. Gheysen;P. V. Damme
通讯作者：
P. V. Damme
马里猴面包树（Adansonia digitalata L.）果实性状的表型变异
影响因子：
2.2
作者：
S. Smedt;K. Alaerts;A. Kouyaté;P. Damme;G. Potters;R. Samson
通讯作者：
R. Samson
影响因子：
2.2
作者：
Leakey, RRB;Tchoundjeu, Z;Ukafor, V
通讯作者：
Ukafor, V