Hairo Rios-Carlos1, María Guadalupe Segovia-Ramírez1, Matthew K Fujita2

  • 1Unidad de Genómica Avanzada, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, km 9.6 Libramiento Norte Carretera Irapuato-León, Irapuato, Guanajuato, México.

概括

与预测相反,的大型基因组不会降低选择效率. 研究发现,基因组大小与选择效率之间没有显著的联系,也没有证据表明在更大的基因组中放松选择.

相关概念视频

Types of Selection01:46

Types of Selection

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Limits to Natural Selection01:38

Limits to Natural Selection

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Frequency-dependent Selection01:21

Frequency-dependent Selection

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Genetics of Speciation02:16

Genetics of Speciation

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Gene Evolution - Fast or Slow?

The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
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