Pollen-tube growth rates in Collinsia heterophylla (Plantaginaceae): one-donor crosses reveal heritability but no effect on sporophytic-offspring fitness | Zendy

Åsa Lankinen | Zendy; Johanne Maad | Zendy; W. Scott Armbruster | Zendy

Open Access

Pollen-tube growth rates in Collinsia heterophylla (Plantaginaceae): one-donor crosses reveal heritability but no effect on sporophytic-offspring fitness

Author(s) -

Åsa Lankinen,

Johanne Maad,

W. Scott Armbruster

Publication year - 2009

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1093/aob/mcp014

Subject(s) - biology , pollen , pollen tube , heritability , offspring , trait , competition (biology) , maternal effect , sexual selection , botany , ecology , zoology , pollination , evolutionary biology , genetics , pregnancy , computer science , programming language

Evolutionary change in response to natural selection will occur only if a trait confers a selective advantage and there is heritable variation. Positive connections between pollen traits and fitness have been found, but few studies of heritability have been conducted, and they have yielded conflicting results. To understand better the evolutionary significance of pollen competition and its potential role in sexual selection, the heritability of pollen tube-growth rate and the relationship between this trait and sporophytic offspring fitness were investigated in Collinsia heterophylla.

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