Am. J. Bot. Botany 2008 Ad
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (17)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Puterbaugh, M. N.
Right arrow Articles by Galen, C.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Puterbaugh, M. N.
Right arrow Articles by Galen, C.
Agricola
Right arrow Articles by Puterbaugh, M. N.
Right arrow Articles by Galen, C.

American Journal of Botany, Vol 84, 393, Copyright © 1997 by Botanical Society of America, Inc.

POPULATION BIOLOGY

The functional ecology of gynodioecy in Eritrichum aretioides (Boraginaceae), the alpine forget-me-not

MN Puterbaugh, A Wied and C Galen

Eritrichum aretioides is a gynodioecious species with female and hermaphrodite individuals. In populations on Pennsylvania Mountain in central Colorado (USA), the frequency of females ranges from 22 to 41%. Flower number and the number of seeds produced per flower were similar in hermaphrodites and females. However, hermaphrodites produced larger flowers, while females produced larger seeds (P < 0.05 for both). In the field, seed germination was higher for seeds from females than for seeds from hermaphrodites (20 vs. 9% germination; P < 0.05). Unvisited flowers and open-pollinated flowers of hermaphrodites had similar pollen receipt (approx 20 pollen grains per stigma), but seed set following autogamous pollination was significantly lower than seed set following natural pollination. This finding indicates that hermaphrodites have a barrier to selfing and implies that the larger seed size and greater establishment advantage of offspring from females is unlikely to have resulted from female outcrossing advantage. Rather, differences in the quality of seed progeny between morphs probably reflect a trade-off in sexual allocation or pleiotropic effects of the sex-determining genes.


This article has been cited by other articles:


Home page
 ANN BOT (LOND)Home page
T. Rodriguez-Riano and A. Dafni
Pollen Stigma Interference in Two Gynodioecious Species of Lamiaceae with Intermediate Individuals
Ann. Bot., August 1, 2007; 100(2): 423 - 431.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
S.-M. Chang
Female compensation through the quantity and quality of progeny in a gynodioecious plant, Geranium maculatum (Geraniaceae)
Am. J. Botany, February 1, 2006; 93(2): 263 - 270.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
M. Lopez-Villavicencio, A. Branca, T. Giraud, and J. A. Shykoff
Sex-specific effect of Microbotryum violaceum (Uredinales) spores on healthy plants of the gynodioecious Gypsophila repens (Caryophyllaceae)
Am. J. Botany, May 1, 2005; 92(5): 896 - 900.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
E. Asikainen and P. Mutikainen
Female frequency and relative fitness of females and hermaphrodites in gynodioecious Geranium sylvaticum (Geraniaceae)
Am. J. Botany, February 1, 2003; 90(2): 226 - 234.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
J. S. Miller and D. L. Venable
The transition to gender dimorphism on an evolutionary background of self-incompatibility: an example from Lycium (Solanaceae)
Am. J. Botany, December 1, 2002; 89(12): 1907 - 1915.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
M. Marshall and F. R. Ganders
Sex-biased seed predation and the maintenance of females in a gynodioecious plant
Am. J. Botany, August 1, 2001; 88(8): 1437 - 1443.
[Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1997 by the Botanical Society of America, Inc.