Protracted domestication
Webb10 sep. 2008 · Domestication bottlenecks eliminate genetic variation, and given protracted bottlenecks (e.g., Fig. 2 B and C), the alleles representing multiple domestications may be lost. This does not mean that multiple, independent domestications did not occur, only that their descendants are not represented in the crop today. WebbDomestication Is a Protracted Process The tempo of domestication has been the subject of study and controversy [15–26]. Although Darwin presumed that evolu-tionary change proceeded gradually, crop species appeared to run counter to this assumption. Early work suggested that domesticated taxa arose rapidly, and that the first plant domes-
Protracted domestication
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Webb16 sep. 2008 · The protracted transition model has profound consequences on the evolution of domestication: Artificial selection did not quickly dominate natural … Webb9 dec. 2008 · Like Allaby et al. ( 1 ), we find that multiple domestication events appear monophyletic more often over time, but this process occurs much more slowly than claimed: To double the proportion of monophyletic phylogenies under the admixture model requires increasing the age of domestication by an order of magnitude (from 4N to 40N …
Webb15 aug. 2024 · In the framework of the protracted-autonomous model of PD, some scholars suggest that domestication can be viewed as a form of specialized mutualism … WebbArguments to support protracted domestication, and or sym-biotic/mutualistic, coevolutionary domestication are drawn from several primary domestication centers world-wide (e.g., Smith, 2001, 2007, 2011; Purugganan and Fuller, 2009, 2011; Zeder, 2015, 2024a, 2024). However, each of the primary PD centers has its own
WebbThe protracted domestication of Asian rice is usually defined by the fixation of the domestication syndrome consisting of six main phenotypic traits having all an agronomic importance: seed ... Webb5 dec. 2016 · Summary. In a new study, DNA from a 5,310-year-old corn cob found in the Tehuacán Valley in Mexico was sequenced and compared to modern maize and its wild progenitor grasses. The sample was found to be an intermediate between modern maize and its wild relatives, suggesting a gradual, protracted domestication process.
Webb1 juni 2024 · The protracted domestication model posits that wild cereals in southwest Asia were cultivated over millennia prior to the appearance of domesticated cereals in the archaeological record.
Webb1 jan. 2024 · The protracted domestication model rests on a long series of assumptions of which we address only two: (1) that the archeobotanical assemblages found in Neolithic occupation sites are representative of the managed plant populations from the cultivated fields; (2) that WT (shattering, brittle spikes) and domesticated (non-shattering, non … lead the development of the industryWebb1 jan. 2014 · To address the geography of plant domestication, evidence from three major independent fields is required: (1) the geobotany and genetics of the living plants, (2) 14 … lead the leagueWebb23 okt. 2024 · The dating of the domestication episode, between 6500-3300 bc, does not exclude a protracted period of precultivation exploitation of millets and other grasses (cf. Yang et al. 2012Yang et al ... lead the groupWebb6 juli 2024 · The key domestication-related loci, originated over a wide geographical range, were gradually pyramided through a protracted process. Diverse stable-inheritance … lead the horse to water memeWebb15 aug. 2024 · In the framework of the protracted-autonomous model of PD, some scholars suggest that domestication can be viewed as a form of specialized mutualism 1 between humans and their would-be domesticates (Rindos, 1980, 1984; Purugganan and Fuller, 2011) that can be treated in the spirit of other phenomena of co-evolved … lead the field earl nightingale tape 3Webb15 aug. 2024 · Growing evidence from archaeobotany and genetics has suggested that domestication is a protracted process. In addition to the unconscious selection carried … leadthem consultingWebb17 aug. 2024 · The protracted domestication of Asian rice is usually defined by the fixation of the domestication syndrome consisting of six main phenotypic traits having all an agronomic importance: seed retention, reduction of seed dispersal aids, increase in seed size, reduction of seed dormancy, a more compact growth habit, and synchronised … leadthefest.id/lead-the-future