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3 results for “Sinocalycanthus chinensis”
Data from: Pollen limitation in the endangered Chinese endemic species Sinocalycanthus chinensis
<p>Pollen limitation negatively impacts endangered and endemic plants with small fragmented populations, such as <i>S</i><i>inocalycanthus chinensis</i><i>, </i>an endangered plant endemic to China. In this study, we analyzed the pollen limitation of the <i>S. chinensis</i> Damingshan (DMS) population in 2006, 2009, and 2010, and crossed plants with mates separated by different distances, both within and between populations. The DMS population exhibited strong pollen limitation in fruit set, seed set, and seeds per fruit in 2006, 2009, and 2010. The average accumulated pollen limitation (for fruit set times seeds per fruit) was 0.510 ± 0.180. Progeny crossed with pollen from intermediate neighboring plants within the same population (separated by 30 – 50 m from pollen recipients) had the lowest fitness. No optimal outcrossing distance was found within the<i> </i>DMS population. Progeny from crosses with the SXW and DLS populations performed relatively better, while those from crosses with QLF and LXS populations performed worse. Compared with average reproductive success, outbreeding depression was found in progeny from crosses with the LXS and QLF populations. Reproductive success from pure self-pollination indicated <i>S. chinensis </i>is self-compatible. Geitonogamous selfing increased reproductive success. Based on geitonogamous selfing, the proportion of selfed offspring was relatively high. These results provide basic references for the conservation of this species.</p>
Data from: Pollen limitation in the endangered Chinese endemic species Sinocalycanthus chinensis
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Effect of sire population on the genetic diversity and fitness of F1 progeny in the endangered Chinese endemic Sinocalycanthus chinensis
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