Population genetics in the American tropics: XIX. The pattern of genetic variation in an isolated population of Drosophila willistoni from Colombia

Hoenigsberg, H. F.; Ordóñez, Marina; Monje, Carlos; Castañeda, Hasbleidy

doi:10.1111/j.1439-0469.1983.tb00271.x

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References 21 publications

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“…As we insisted before (p. 3, 4), an almost isolated mosaic of small populations are indispensable to the population genetics scenario of this theory (Wright, 1945 and others). In fact, we end up with sexual isolation as a by-product of adaptation (Hoenigsberg et al, 1988). It might be useful at this point to recall the synthetic theory of Dobzhansky, Simpson, Mayr and Huxley, advocated for divergences between populations that are the result of the accumulation of point mutations, which by selection produce a gradual sequential adaptation to local circumstances and eventually selectively separate populations from their ancestors.…”

Section: Junk Dna Increased Non-coding Digital Informationmentioning

confidence: 99%

New TheoryA genomic parasite in the evolution of metazoan development

Hoenigsberg¹,

Sanabria²

2009

Genet. Mol. Res.

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ABSTRACT. It is a challenge to understand how development emerged as a mechanism to dismantle and dismiss the intromission of foreign parasites in order to consolidate a higher-level multicellular unit of selection where more heritable variations in fitness, required for complex organization, can be procured. Levels in biological hierarchy genes, networks of genes, chromosomes, cells, organisms, etc., possess heritable variations in fitness to varying degrees, and as such, they function as units of selection in the evolutionary process [Lewontin, (1970). The units of selection. Annu. Rev. Ecol. Syst. 1: 1-18]. To proceed from each of these levels to the next constitutes a major transition in evolutionary history. When analyzing the splendid road epitomized by these transitions in units of selection, it is possible to conceive three processes: firstly, the molecular "recognition" of the "convenience" of exchanging the higher energy cost of cooperating cells with more fitness than single-cell selection (after that first recognition the emergence of 897 ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 8 (3): 896-914 (2009) Evolvability and evolutionary constraints as fingerprints of selection cooperation among cells is possible); secondly, the establishment of the mechanisms to regulate conflict, and finally, the regulation of cell differentiation and compartmentalization.

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Section: Junk Dna Increased Non-coding Digital Informationmentioning

confidence: 99%