POLLEN APERTURE POLYMORPHISM IN THE ANGIOSPERMS - IMPORTANCE, POSSIBLE CAUSES AND CONSEQUENCES

被引：53

作者：

MIGNOT, A

HOSS, C

DAJOZ, I

LEURET, C

HENRY, JP

DREUILLAUX, JM

HEBERLEBORS, E

TILLBOTTRAUD, I

机构：

[1] Laboratoire d'Evolution et Systématique des Végétaux, CNRS URA 1492, Université Paris-Sud, Orsay Cedex, F-91405

[2] Laboratoire d'Ecologie, CNRS URA 258, Ecole Normale Supérieure, Paris Cedex 05, F-75230, 46, rue d'Ulm

[3] Laboratoire de Génétique moléculaire des Plantes, CNRS URA 115, Université Paris-Sud, Orsay Cedex, F-91405

[4] Laboratoire de Biologie végétale: Populations et Communautés, CNRS URA 1492, Université Paris-Sud, Orsay Cedex, F-91405

[5] Institute of Microbiology and Genetics, University of Vienna, Vienna Biocenter, Wien, A-1030

来源：

ACTA BOTANICA GALLICA | 1994年 / 141卷 / 02期

关键词：

POLLEN; APERTURE NUMBER; PLOIDY; POLYMORPHISM; HETEROMORPHISM;

D O I：

10.1080/12538078.1994.10515144

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

To investigate the evolutionary mechanisms that produced the great diversity of pollen morphology, we concentrated on pollen aperture polymorphism. Possible selective forces and evolutionary mechanisms have been investigated previously. In this paper, we aim to test the predictions of a theoretical model and to evaluate the influence of ploidy on pollen aperture polymorphism. A survey of 186 species showed that pollen aperture number variation occurs mainly as different types in all plants (heteromorphism) whereas genetic polymorphism is related to heterostyly. Sporophytic ploidy increases the mean aperture number by shifting the mode to higher-aperturate pollen. However, the different types found within a plant do not correspond to reduced and unreduced gametophytes. The evolutionary consequences of these results are discussed.

引用

页码：109 / 122

页数：14

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