Nutrient deficiency promotes male-biased apparent sex ratios at the ramet level in the dioecious plant Myrica gale var. tomentosa in oligotrophic environments in bogs

Inoue Mizuki, Kiyoshi Ishida, Masaaki Chiwa, Yoshitoshi Uehara, Ken’ichi Shinozuka, Atsushi Kume

研究成果: ジャーナルへの寄稿記事

抄録

In populations of dioecious plants, the differences in the cost of reproduction between male and female plants can promote a male-biased sex ratio. In this study, we examine the macronutrient levels in tissues of the dioecious wetland shrub Myrica gale to identify the cost of reproduction for male and female plants and to examine the effect of nutrients on the apparent sex ratio at the ramet level. We examined plants across 12 populations of M. gale inhabiting bogs and fens in Japan. For each population, we used line transects to estimate the apparent sex ratio and measured the concentrations of nitrogen (N), phosphorus (P), and potassium (K) in the leaves sampled from male and female plants and in the fruits from female plants. For five of the populations, we calculated the flowering frequency, mortality, and the recruitment rate (as the rate of clonal propagation). We found that the proportion of females was positively affected, and the male bias of sex ratios reduced, by increases in P concentration in leaves sampled from female plants. Neither mortality nor recruitment was affected by sex or by the nutrient concentration (P, K). The flowering frequency was not affected by sex or by K concentration, but decreased with decreases in the P concentration measured in leaves. This study confirmed that reproduction in M. gale is P-limited. We found no distinct differences in the flowering frequency, mortality, or recruitment rate between the male and female plants.

元の言語英語
ページ(範囲)1-13
ページ数13
ジャーナルJournal of Plant Research
131
発行部数6
DOI
出版物ステータス受理済み/印刷中 - 7 14 2018

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Myrica gale
bogs
nutrient deficiencies
sex ratio
flowering
leaves
gender
fens
wetlands
nutrient content
shrubs
potassium
Japan
phosphorus

All Science Journal Classification (ASJC) codes

  • Plant Science

これを引用

Nutrient deficiency promotes male-biased apparent sex ratios at the ramet level in the dioecious plant Myrica gale var. tomentosa in oligotrophic environments in bogs. / Mizuki, Inoue; Ishida, Kiyoshi; Chiwa, Masaaki; Uehara, Yoshitoshi; Shinozuka, Ken’ichi; Kume, Atsushi.

:: Journal of Plant Research, 巻 131, 番号 6, 14.07.2018, p. 1-13.

研究成果: ジャーナルへの寄稿記事

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abstract = "In populations of dioecious plants, the differences in the cost of reproduction between male and female plants can promote a male-biased sex ratio. In this study, we examine the macronutrient levels in tissues of the dioecious wetland shrub Myrica gale to identify the cost of reproduction for male and female plants and to examine the effect of nutrients on the apparent sex ratio at the ramet level. We examined plants across 12 populations of M. gale inhabiting bogs and fens in Japan. For each population, we used line transects to estimate the apparent sex ratio and measured the concentrations of nitrogen (N), phosphorus (P), and potassium (K) in the leaves sampled from male and female plants and in the fruits from female plants. For five of the populations, we calculated the flowering frequency, mortality, and the recruitment rate (as the rate of clonal propagation). We found that the proportion of females was positively affected, and the male bias of sex ratios reduced, by increases in P concentration in leaves sampled from female plants. Neither mortality nor recruitment was affected by sex or by the nutrient concentration (P, K). The flowering frequency was not affected by sex or by K concentration, but decreased with decreases in the P concentration measured in leaves. This study confirmed that reproduction in M. gale is P-limited. We found no distinct differences in the flowering frequency, mortality, or recruitment rate between the male and female plants.",
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AU - Chiwa, Masaaki

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AU - Shinozuka, Ken’ichi

AU - Kume, Atsushi

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