Studies of hybridization and chromosome number variation in aquatic angiosperms: evolutionary implications

doi:10.1016/0304-3770(93)90071-4

Aquatic Botany

Volume 44, Issues 2–3, January 1993, Pages 181-228

https://doi.org/10.1016/0304-3770(93)90071-4 Get rights and content

Abstract

Aquatic angiosperms are widely recognized as a biological group sharing attributes associated with adaptations to the aquatic condition. Clonal growth, high vagility of vegetative propagules, and rare to sporadic sexual reproduction are common convergences among aquatic plants, and play central, interacting roles in various evolutionary factors. In this review, two important evolutionary factors, hybridization and chromosome number variation, are discussed with respect to interactions involving clonal growth, vagility, and asexuality. Asexual reproduction emerges as a significant evolutionary catalyst allowing for the perpetuation of hybrid offspring and anomalous cytotypic variants. Inherent phenotypic plasticity in aquatic plants is difficult to discern from both hybrid individuals and cytotypic variants. Detailed studies of putative ‘hybrids’ in some groups may reveal a higher incidence of cytotypic variants at the basis of morphological differences previously attributed to hybridization.

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Studies of hybridization and chromosome number variation in aquatic angiosperms: evolutionary implications

Abstract

Aquat. Bot.

Aquat. Bot.

Aquat. Bot.

Aquat. Bot.

Aquat. Bot.

Aquat. Bot.

Observations on the Sagittaria subulata complex

Rhodora

North American species of Myriophyllum (Haloragaceae)

The biology of Canadian weeds. 34. Myriophyllum spicatum L.

Can. J. Plant Sci.

An Alisma hybrid

Potamogetonaceae

Scirpus lacustris L. ssp. glaucus (Sm.) Hartm.× Scirpus triqueter L. (S × scheuchzeri Bruegg.) in Nederland

Gorteria

A comparative account of the structure of Potamogeton filiformis Pers. and P. pectinatus L. in relation to the identity of a supposed hybrid of these species

Cytological studies on some members of the family Pontederiaceae

Cytologia

Taxonomy and natural history of Bacopa (Scrophulariaceae) in California

Syst. Bot.

Sur l'origine deRanunculus dichotomiflorus Lag.

Bol. Soc. Brot., Ser. 2

Dormancy and propagation in helophytes and hydrophytes

Arch. Hydrobiol. Beih. Ergebn. Limnol.

A study of introgression in Typha at Pt. Pelee Marsh, Ontario

Can. Field Nat.

Taxonomic revision of the genus Nuphar Sm. of North America and Europe

J. Elisha Mitchell Sci. Soc.

Sparganium (Sparganiaceae) in the southeastern United States

Brittonia

Review of the Sagittaria engelmanniana complex (Alismataceae) with environmental correlations

Syst. Bot.

Studies in Alisma L., 2. Chromosome studies, crossing experiments, and taxonomy

Op. Bot. Soc. Bot. Lund.

Chromosomal mutations in the Jimson weed, Datura stramonium

J. Hered.

Revision of the genus Sagittaria

Mem. N.Y. Bot. Gard.

Chromosome Numbers of Flowering Plants

A biosystematic study of some Glyceria species in Britain, 1. Taxonomy

Watsonia

A biosystematic study of some Glyceria species in Britain, 4. Breeding systems, fertility relationships, and general discussion

Watsonia

Glyceria R.Br.

Plant Variation and Evolution

S. scheuchzeri. Ber. — Naturwiss.

Ges. Graubündens

Aquarium Plants

Pteridophyta und Antophyta 1. Teil Lycopodiaceae bis Orchidaceae

Pteridophyta und Anthophyta 2. Teil: Saururaceae bis Asteraceae

Myriophyllum quitense and Myriophyllum ussuriense (Haloragaceae) in British Columbia, Canada

Brittonia

Polyploidy in an immersed aquatic angiosperm

Am. J. Bot.

Cytological studies on three aquatic members of Hydrocharitaceae in relation to their morphological and ecological characteristics

Cytologia

The waterlilies: a monograph of the genus Nymphaea

Carnegie Inst. Washington Publ.

Sparganium in Britain

Watsonia

Sparganium erectum L., in Biological Flora of the British Isles

J. Ecol.

A monographic study of Ranunculus subgenus Batrachium

Mitt. Bot. Muench.

Sparganium L.

Ranunculus subg. Batrachium (DC.) A. Gray

Pollination mechanisms in the Hydrocharitaceae

A monographic study of the genus Sparganium (Sparganiaceae). Part 1. Subgenus Xanthosparganium Holmberg

Bot. Helv.

A monographic study of the genus Sparganium (Sparganiaceae). Part 2. Subgenus Sparganium

Bot. Helv.

Potamogeton L.

An account of Potamogeton×suecicus Richt. in Yorkshire and the Tweed

Chromosome Atlas of Flowering Plants

Chromosome number reports LXVII

Taxon