Selection and population structure in Lolium
نویسندگان
چکیده
منابع مشابه
Kin Selection, Group Selection, and the Varieties of Population Structure
Various results show the ‘formal equivalence’ of kin and group selectionist methodologies, but this does not preclude there being a real and useful distinction between kin and group selection processes. I distinguish individualand population-centred approaches to drawing such a distinction, and I proceed to develop the latter. On the account I advance, the differences between kin and group sele...
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Single trait selection was practiced in three lines of Hereford cattle derived from a common base population. Selection was practiced on males only within sire families for increased weaning weight (WW) in the WW line (WWL), for postweaning gain (PG) in the PG line (PGL) and at random in the control line (CTL). Females were culled on the basis of age or reproductive failure. Progeny of selected...
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A simulation study was undertaken of methods of subdividing populations into several small sublines and utilizing the variances generated between lines by selecting among them. Crosses of chosen lines were made, and either selection was continued in a single large population (single cycle) or the population was subdivided again (repeated cycles). As a control for the efficiency of these schemes...
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The aim of this study was to describe inbreeding and population structure in Sangsari sheep breeding station. For this reason, data from 7028 Sangsari sheep which were collected during 1987-2014 in Sangsari sheep breeding station located near to Damghan city, Semnan province were used. Lambs born during 2010-2014 were considered as reference population. The genetic structure analysis of the pop...
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Introduction: Poverty reduction is one of the important macroeconomic goals of any country, but achieving this important issue requires examining the factors affecting it. Changing the age structure of the population is one of the effective factors in reducing poverty in countries. Therefore, governments can make the most of their population, given the capacity of countries and providing the ne...
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ژورنال
عنوان ژورنال: Heredity
سال: 1959
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1959.47