Researchers from the Department of Plant Biology and Ecology of the University of Seville have shown that two types of common shrubs in Andalusia, the myrtle or myrtle and the mastic, improve their offspring by being pollinated by seeds of different origin. At the same time, they have confirmed that if fertilization occurs in a higher proportion with the same father, they have less chance of growth and survival. In a deteriorated habitat, some species have difficult germination and are fertilized from different sources to produce stronger offspring. The best known system of sexual propagation in plants is allogamy, also called cross-fertilization. In this way, genetic variability is guaranteed and, therefore, new combinations within a species by taking pollen from another origin and not from itself. However, very few studies to date have taken into account other parameters of the

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mating method other than outcrossing rates. The direct effects of the genetic diversity of the seed received by the mothers, known as correlated paternity, is the measure that indicates the Jordan Email List different parents. That is, the proportion of children fertilized by the same father. In the article published in the magazine Plos One entitled ‘High Correlated Paternity Leads to Negative Effects on Progeny Performance in Two Mediterranean Shrub Species’ the experts have analyzed this aspect little studied so far in the world of plants: how it affects the offspring the fact that mothers are pollinated by more than one father within the same population. The fact that they receive more seeds or have more time to germinate ensures their survival and improves the species. “This study represents one of the few existing empirical examples that highlight the influence that correlated paternity

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can exert on progeny performance at various stages during early seedling growth,” the researcher from the University of Seville Rafael González Albaladejo, author of the article. More parents to be stronger The results have shown that plants evolve to a system in which many parents are selected to obtain advantages so that they propagate and obtain the best seeds by producing many crosses with different parents. In this way, during the experiments, the researchers observed that some characteristics of the children were negatively affected by the high correlated parenthood. Both Myrtus communis (myrtle) and Pistacia lentiscus (mastic) suffered a reduction in germination and progeny survival analysis showed higher seedling mortality. The studies have been carried out in the provinces of Seville, Córdoba, Cádiz and Huelva and have carried out the demonstrations

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