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首页> 外文期刊>Annals of Botany >The protected tree Dimorphandra wilsonii (Fabaceae) is a population of inter-specific hybrids: recommendations for conservation in the Brazilian Cerrado/Atlantic Forest ecotone
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The protected tree Dimorphandra wilsonii (Fabaceae) is a population of inter-specific hybrids: recommendations for conservation in the Brazilian Cerrado/Atlantic Forest ecotone

机译:受保护的树Dimorphandra Wilsonii(Fabaceae)是特定互联杂种的群体:巴西Cerrado /大西洋森林Ecotone的保护建议

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Backgrounds and Aims Dimorphandra wilsonii Rizzini, a critically endangered and protected tree, has a restricted distribution in the ecotone between the Cerrado and the Atlantic Forest in south-eastern Brazil. In this area, it co-occurs with D. morns Benth., a common tree from the Cerrado. and D. exaltata Schott., a rare tree from the Atlantic Forest. Previous studies of D. wilsonii indicated heterozygosity excess at the individual level. Field observation of some intermediate phenotypes between D. wilsonii and both congeners suggests hybridization of D. wilsonii with D. mollis and/or D. exaltata. Here, we tested the hypothesis that D. wilsonii may have originated from hybridization between D. exaltata and D. moths. We also performed cytogenetic analysis to examine if the heterozygosity excess could be explained by polyploidy in D. wilsonii.
机译:背景和AIMS Dimorphandra Wilsonii Rizzini,一个批评性濒临灭绝和受保护的树,在巴西东南部的Cerrado和大西洋林之间的Ecotone中具有限制性的分布。 在这个领域,它与D. Morns Benth一起发生。,来自Cerrado的一棵公共树。 和D. Exaltata Schott。,来自大西洋森林的稀有树。 以前的D. WilsonII研究表明在个体层面上过度过量。 D. WilsonII和两种Congeners之间一些中间表型的田间观察表明D.WilsonII与D. mollis和/或D.exaltaata的杂交。 在这里,我们测试了D.Wilsonii可能产生的假设可能源于D. Exaltata和D.飞蛾之间的杂交。 我们还进行了细胞遗传学分析,以检查杂合子过量是否可以通过D.WilsonII的多倍体解释。

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