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Titolo:
An ESS model for the mixed production of cleistogamous and chasmogamous flowers in a facultative cleistogamous plant
Autore:
Masuda, M; Yahara, T; Maki, M;
Indirizzi:
Univ Tokyo, Coll Arts & Sci, Dept Biol, Meguro Ku, Tokyo 153, Japan Univ Tokyo Tokyo Japan 153 & Sci, Dept Biol, Meguro Ku, Tokyo 153, Japan
Titolo Testata:
EVOLUTIONARY ECOLOGY RESEARCH
fascicolo: 4, volume: 3, anno: 2001,
pagine: 429 - 439
SICI:
1522-0613(200105)3:4<429:AEMFTM>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
INBREEDING DEPRESSION; IMPATIENS-CAPENSIS; OUTCROSSING RATES; REPRODUCTIVE-BEHAVIOR; EVOLUTION; POPULATIONS; CONSEQUENCES; POLLINATION; FITNESS; SYSTEM;
Keywords:
chasmogamy; evolutionarily stable strategy; facultative cleistogamy; geitonogamy; resource allocation model; seasonal variation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
42
Recensione:
Indirizzi per estratti:
Indirizzo: Masuda, M Ehime Univ, Fac Engn, Dept Civil & Environm Engn, Matsuyama, Ehime 7908577, Japan Ehime Univ Matsuyama Ehime Japan 7908577 , Ehime 7908577, Japan
Citazione:
M. Masuda et al., "An ESS model for the mixed production of cleistogamous and chasmogamous flowers in a facultative cleistogamous plant", EVOL EC RES, 3(4), 2001, pp. 429-439

Abstract

We have developed resource allocation models for the evolution of a mixed production of cleistogamous and chasmogamous flowers. The basic model takesinto account the features associated with cleistogamous self-pollination (e.g. the greater economy and assurance of cleistogamous fertilization) and the inability of cleistogamous flowers to contribute to the outcrossed pollen pool. The basic model predicts that only one of each strategy (i.e. chasmogamy or cleistogamy) is favoured. However, when seasonal fluctuation of the fruit-to-flower ratio of chasmogamous flowers is considered, an evolutionarily stable strategy favours either cleistogamous or chasmogamous flower production. This fluctuation in fertility may explain the seasonally discrete production of dimorphic flowers in natural populations of some facultative cleistogamous plants. The simultaneous production of both of the dimorphic flowers is explained only when the effect of geitonogamous selfing of chasmogamous flowers is included in the model.

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Documento generato il 27/01/20 alle ore 01:28:38