+ Site Statistics
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Progeny sex ratios in dioecious Silene latifolia (Caryophyllaceae)

, : Progeny sex ratios in dioecious Silene latifolia (Caryophyllaceae). American Journal of Botany 80(5): 551-556

Most sex ratios reported for Silene latifolia are female biased. As a result of experiments performed by Correns in the early l900s, pollen tube competition has generally been accepted as the primary cause of these skewed ratios. We did four sets of hand pollinations in which we varied the size of pollen loads and placement of pollen along the filamentous stigma. The effect of pollen load size on progeny sex ratios was not statistically significant. Of 32 maternal families, 17 contained more females than males (one ratio deviated statistically from 1:1), and 13 contained more males than females. Paternal families exhibited a greater range of sex ratios, including three with a significant female bias and one with a significant male bias. Within experiments, neither the maternal parent nor where pollen was placed had a statistically significant effect on progeny sex ratios; the paternal effect was significant in one experiment. We suggest that sex ratios in Silene latifolia are not necessarily affected by the level of pollen competition. Other factors, including variation among males and sex-linked mortality, may help explain the skewed sex ratios that characterize populations of this species. Further, Correns' observations of excess females may have resulted from his use of interspecific hybrids. Reprinted by permission of the publisher. .

(PDF same-day service: $19.90)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 002468619

DOI: 10.2307/2445371

PDF Full Text: Submit

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Weijenborg, P.W.; Cremonini, F.; Smout, A.J.P.M.; Bredenoord, A.J., 2012: PPI therapy is equally effective in well-defined non-erosive reflux disease and in reflux esophagitis: a meta-analysis. Symptomatic response to proton pump inhibitor (PPI) therapy in patients with non-erosive reflux disease (NERD) is often reported as lower than in patients with erosive reflux disease (ERD). However, the definition of NERD differs across clinical t...

Yokoo, H.; Goldstein, M.; Meller, E., 1988: Receptor reserve at striatal dopamine receptors modulating the release of [3H]dopamine. Electrically stimulated release of [3H]dopamine [( 3H]DA) in slices of rat striatum was dose dependently inhibited by apomorphine (67% maximal inhibition) with an EC50 of 17 nM. DA receptor inactivation with N-ethoxycarbonyl-2-ethoxy-1,2-dihydroqu...

GYERGYAY.F.; HADNAGY.C., 1957: Role of nervous system in regulation of mitotic cell division. Acta Physiologica Academiae Scientiarum Hungaricae 12(1-3): 173-178

Yoshino, K.; Kariya, N.; Namura, D.; Noji, I.; Mitsuhashi, K.; Kimura, H.; Fukuda, A.; Kikukawa, I.; Hayashi, T.; Yamazaki, N.; Kimura, M.; Tsukiyama, K.; Yamamoto, K.; Fukuyama, A.; Hidaka, D.; Shinoda, J.; Mibu, H.; Shimakura, Y.; Saito, A.; Ikumi, S.; Umehara, K.; Kamei, F.; Fukuda, H.; Toake, T.; Takahashi, Y.; Miyata, Y.; Shioji, S.; Toyoda, M.; Hattori, N.; Nishihara, H.; Matsushima, R.; Nishibori, M.; Hokkedo, O.; Nojima, M.; Kimura, T.; Fujiseki, M.; Okudaira, S.; Tanabe, K.; Nakano, M.;, 2013: Risk factors affecting third molar autotransplantation in males: a retrospective survey in dental clinics. The aim of this study was to investigate the risk factors affecting long-term prognosis of autotransplantation of third molars with complete root formation in males at dental clinics. Participating dentists were requested to provide information on...

Claus-Walker, J.; D.F.rrante, N.; Halstead, L.S.; Tavella, D., 1982: Connective tissue turnover in quadriplegia. American Journal of Physical Medicine 61(3): 130-140

Woliński, J.; Kujawa, T.; Prokopienko, G.; Rafalska, B., 1988: The search for compounds with dopaminergic activity. VII. Synthesis of piribedil analogs. Acta Poloniae Pharmaceutica 45(3): 206-209

Mcnamara, Timothy, P., 1994: Theories of priming: II. Types of primes. In 4 lexical-decision experiments, words were primed by associatively related words, unrelated words, neutral primes, or nonwords. The associative relations between the critical targets and the targets on preceding trials were also manipulated. Th...

Jiang, Y.; Pan, S-Yang.; Xia, W-Ying.; Chen, D.; Wang, H.; Zhang, L-Xia.; Xu, J.; Peng, Y.; Qiu, H-Rong.; Miao, K-Rong.; Li, J-Yong.; Wu, Y-Jie., 2012: Dynamic monitoring of plasma circulating DNA in patients with acute myeloid leukemia and its clinical significance. This study was aimed to quantify plasma circulating DNA level in patients with acute myeloid leukemia (AML) and to evaluate its clinical significance. 66 AML patients and 100 controls (60 healthy subjects for health examination, 20 cases of benign...

Jungert, A.; Roth, H.J.; Neuhäuser-Berthold, M., 2012: Serum 25-hydroxyvitamin D3 and body composition in an elderly cohort from Germany: a cross-sectional study. Emerging evidence indicates that there is an association between vitamin D and obesity. The aim of this study was to investigate whether the level of serum 25-hydroxyvitamin D3 [25(OH)D3] in the elderly is influenced by parameters of anthropometry...

Packer, R.J.; Zimmerman, R.A.; Bilaniuk, L.T., 1986: Magnetic resonance imaging in the evaluation of treatment-related central nervous system damage. Neurologic and neuropsychologic treatment related sequelae are increasingly encountered in children with cancer, but conventional means of neurologic investigation are insensitive to the presence and extent of damage. Magnetic resonance imaging (M...