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首页> 外文期刊>African Journal of Biotechnology >Genome size unaffected by moderate changes in climate and phosphorus availability in Mediterranean plants
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Genome size unaffected by moderate changes in climate and phosphorus availability in Mediterranean plants

机译：在地中海植物中的气候和磷的可用性温和变化不受影响的基因组大小

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摘要

Nuclear DNA amount has been assessed in a set of 6 Mediterranean plant species including subshrubs, shrubs and trees (Dorycnium pentaphyllum?Scop., Erica multiflora?L., Fumana ericoides?(L.) Webb, Globularia alypum?L., Pinus halepensisMill and?Rosmarinus officinalis?L.). Genome size values have been assessed by flow cytometry from plants growing in their natural habitats, in plots with a particular experimental design to measure the effects of drought and warming and also with different phosphorus (P) concentration in soil. 2C values have been fairly constant in all the species studied under all conditions. These results, which provide first records of DNA content in all the studied species except for?P. halepensis, suggest that moderate changes in climate such as a 0.73°C warming or a drought consisting of 19% decrease in soil moisture on an average of 7 years and the consequent changes in the soil availability of such an essential element as P (ranging from 80 to 160 μg/g) do not affect genome size stability, at least not by producing rapid and significant variations.
机译：核DNA金额已在一套6种地中海植物物种中进行评估，包括次钟，灌木和树木（Dorycnium pentaphyllum？Scop.，Erica Multiflora？L.，Fumana eriCoides？（L.）韦伯，球状血栓溶膜？L.，Pinus Halepensismill和？rosmarinus officinalis？l。）。通过从其天然栖息地生长的植物的流式细胞术进行了基因组大小值，该植物在具有特定实验设计的图中，以测量干旱和升温的影响以及土壤中不同的磷（P）浓度。在所有条件下研究的所有物种中，2C值相当恒定。这些结果，除了Δp之外，在所有研究的物种中提供了第一种DNA含量的记录。 Halepensis，建议，温和的气候变化，如0.73°C的变暖或由19％的土壤水分减少19岁，平均减少7年，因此如P（范围）的土壤可用性的变化80至160μg/ g）不影响基因组大小稳定性，至少不是产生快速和显着的变化。

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