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Organisms in nature adapt and evolve in complex environments. For example, when subjected to changes in nutrients, antibiotics, and predation, microbes in the wild face the challenge of adapting multi...
Biologists at Indiana University have significantly advanced understanding of the genetic pathways that control the appearance of different physical traits in the same species depending on nutritional...
Tufts University biologists have discovered the bioelectric mechanism by which the rare genetic disorder Andersen-Tawil syndrome (ATS) causes facial abnormalities, a finding that could lead to prevent...
Non-genetic perturbations, such as environmental change or developmental noise, can induce novel phenotypes. If an induced phenotype confers a fitness advantage, selection may promote its genetic sta...
Until recently, the genetic code of canola was a mystery. UQ researcher Dr David Edwards, in collaboration with Bayer CropScience and Keygene N.V., is the first in the world to have solved the code, d...
摘要研究松属遗传多样性的方法涉及表型、同工酶、染色体、DNA等多层面。 松树表型性状变异广泛,其不同树种不同性状的遗传力(或遗传率)均存在差异。到目前为止,同工酶仍是检测松树遗传多样性的最常用方法,一般而言,松属树种群体内等位酶多样性程度高,群体间分化较低,但各树种的情形也不尽相同。松属树种染色体水平的变异很低,其核型高度一致。核DNA组较一般阔叶树大,遗传多样性丰富,但叶绿体等质体DNA则多样性...

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