Such features respond to the environment in the broad sense, that is, when both abiotic and biotic components are included. Newts of the genus Triturus have

of heterochrony, a subject that has doggedly maintained a purely quantitative and descriptive approach” (246). Gould’s(1977) book spurred widespread interest in the relation between evolu-

Skickas inom 10-15 vardagar. Köp Heterochrony in Evolution av Michael L McKinney på Bokus.com. heterochronic [het″er-o-kron´ik] 1. pertaining to or characterized by heterochronia.

Heterochrony is

Inbunden, 1988. Skickas inom 10-15 vardagar. Köp Heterochrony in Evolution av Michael L McKinney på Bokus.com. heterochronic [het″er-o-kron´ik] 1.

Mutations in the Caenorhabditis elegans genes lin-14, lin-28, and lin-29 cause heterochronic developmental defects: the timing of specific developmental events

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Heterochrony that produces these changes in size and shape may be the link between genetics at one extreme and natural selection at the other.

Despite a similar general organization, heterochrony is evident from size differences between tissues and structures at similar developmental stages. These differences underlie variable levels of investment in protection, subtle modifications to symmetry, herkogamic effects and independent androecium and gynoecium variation, producing a wide spectrum of floral display and contributing to Heterochrony is of interest in part because it can produce novelties constrained along ancestral ontogenies, and hence result in parallelism between ontogeny and phylogeny. Heterotopy can produce new morphologies along trajectories different from those that generated the forms of ancestors. Heterochrony joins together heteros and chronos (time) with the corresponding semantic effect. These words come from the technical vocabulary of medicine and biology where they designate respectively a deviation from the natural position of an organ, and an evolutionary change in the site at which a particular development occurs. Heterochronie (von griechisch ἕτερος heteros „abweichend“ und χρόνος chrónos „Zeit“) bezeichnet eine evolutionäre Änderung des zeitlichen Verlaufs der Individualentwicklung eines Lebewesens, die bewirkt, dass sich Indeed, heterochrony itself underwent such a natural and fruitful change to an entirely revised significance (see docu-mentation in Gould 1977 and 1992 as well as discussion in Raff 1996 and Klingenberg 1998).
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In evolutionary developmental biology, heterochrony is any genetically controlled difference in the timing or duration of a developmental process in an organism compared to its ancestors or other organisms. heterochrony [ hĕt ′ ə-rō-krŏn′ē ] A change in the timing or duration of an organism's ontogenetic development compared with an ancestral species, resulting in morphological differences between ancestor and descendant. Heterochrony.

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Heterochrony (from the Greek hetero meaning "other" and chronos meaning "time") describes a change in the timing of ontogenetic events between two taxa. These can be the result of relatively small genetic changes that may not even be alterations in DNA sequence, but in the timing of particular genes being expressed during development.

The heterochrony created by the. legend brings the narratives closer to the individual; events have occurred in. the listener's immediate surroundings, and this It is in those warm, shallow water environments, most likely on the edges of Laurussia that tetrapods evolved about 380 million years ago (Blieck et al., 2007).

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abstract = "Analysing the historiography of early to mid 20th century monumental painting in Sweden, the article argue that this historiography is characterised by

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