Comparative assessment of genetic diversity in wild and primitive cultivated barley in a center of diversity.
Comparative assessment of genetic diversity in wild and primitive cultivated barley in a center of diversity.
复制标题
多样性中心野生和原始栽培大麦遗传多样性的比较评估。
DOI：
10.1093/genetics/119.4.981
复制
发表时间：
1988
期刊：
影响因子：
3.3
通讯作者：
Lukasz N. Pietrzak
中科院分区：
文献类型：
--
作者：
Sakti Jana;Lukasz N. Pietrzak
对来自东地中海4个国家、约旦、叙利亚、土耳其和希腊43个地点的野生大麦（Hordeum spontanum K.）和栽培大麦（Hordeum vulgare L.） 16个同工酶位点的遗传多样性进行了电泳分析。与通常的印象相反，栽培大麦种群被发现保持与其野生祖先物种相似的多样性水平。总体多样性分析表明，栽培大麦居群内多样性大于居群间多样性。野生大麦和栽培大麦相邻居群表现出高度的遗传同一性。以3或4个同工酶位点为组进行分析，以检测位点之间的关联。在所有选择用于分析的三组中都检测到不同顺序的多位点关联。该地区两个物种之间的一些关联术语有所不同。虽然没有明确的证据表明该地区大麦的驯化导致了多样性的减少，但有迹象表明，这两个密切相关的物种存在不同的多位点组织。
Wild barley (Hordeum spontaneum K.) and indigenous primitive varieties of cultivated barley (Hordeum vulgare L.), collected from 43 locations in four eastern Mediterranean countries, Jordan, Syria, Turkey and Greece, were electrophoretically assayed for genetic diversity at 16 isozyme loci. Contrary to a common impression, cultivated barley populations were found to maintain a level of diversity similar to that in its wild progenitor species. Apportionment of overall diversity in the region showed that in cultivated barley within-populations diversity was of higher magnitude than the between-populations component. Neighboring populations of wild and cultivated barleys showed high degree of genetic identity. Groups of 3 or 4 isozyme loci were analyzed to detect associations among loci. Multilocus associations of varying order were detected for all three groups chosen for the analysis. Some of the association terms differed between the two species in the region. Although there was no clear evidence for decrease in diversity attributable to the domestication of barley in the region, there was an indication of different multilocus organizations in the two closely related species.