caa a22 4500 469076038 CHVBK 20180323132935.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF02927891 doi (NATIONALLICENCE)springer-10.1007/BF02927891 Joshi N. Centre for Ecological Sciences, Indian Institute of Science, 560012, Bangalore, India aut Sibling rivalry between seeds within a fruit: Some population genetic models [Elektronische Daten] [N. Joshi] Competition between seeds within a fruit for parental resources is described using one-locus-two-allele models. While a "normal” allele leads to an equitable distribution of resources between seeds (a situation which also corresponds to the parental optimum), the "selfish” allele is assumed to cause the seed carrying it to usurp a higher proportion of the resources. The outcome of competition between "selfish” alleles is also assumed to lead to an asymmetric distribution of resources, the "winner” being chosen randomly. Conditions for the spread of an initially rare selfish allele and the optimal resource allocation corresponding to the evolutionarily stable strategy, derived for species with n-seeded fruits, are in accordance with expectations based on Hamilton's inclusive fitness criteria. Competition between seeds is seen to be most intense when there are only two seeds, and decreases with increasing number of seeds, suggesting that two-seeded fruits would be rarer than one-seeded or many-seeded ones. Available data from a large number of plant species are consistent with this prediction of the model. Indian Academy of Sciences, 1992 Intrabrood conflict nationallicence sibling rivalry nationallicence brood reduction nationallicence cainism nationallicence seed-seed competition nationallicence evolutionarily stable strategy nationallicence Journal of Genetics Springer India 71/3(1992-12-01), 105-119 0022-1333 71:3<105 1992 71 12041 https://doi.org/10.1007/BF02927891 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02927891 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Joshi N. Centre for Ecological Sciences, Indian Institute of Science, 560012, Bangalore, India aut NATIONALLICENCE 773 0- Journal of Genetics Springer India 71/3(1992-12-01), 105-119 0022-1333 71:3<105 1992 71 12041 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer