SexDeterm {asbio}

Fern environmental sex determination data

Description

Sex determination (male and female) data at ecologically relevant glucose, N, and P concentrations and stoichiometries, at both ambient and elevated levels of CO_2. The term "ameristic" denotes gametophytes with only male gametangia, while the term "meristic" refers to gametophytes with female or female and male gametangia.

Usage

data("SexDeterm")

Format

A data frame with 156 observations on the following 11 variables.

CO2.Level

a factor with levels Ambient Elevated CO2 levels

Block

a numeric vector, the elevated CO2 experiment was completed in 2 blocks

Glucose.Level

the number of C atoms relative to the number of P atoms, with 5 indicating the presence of 6 micromolar glucose and 0 indicating the absence of glucose in the growth media

N.Level

the number of N atoms relative to the number of P atoms

P.Level

the number of P atoms relative to the number of N atoms

C.N.P

the ratio of C to N to P atoms, a factor with levels 1:1 1:2 1:3 1:4 16:1 16:2 16:3 16:4 32:1 32:2 32:3 32:4 48:1 48:2 48:3 48:4 5:1:1 5:1:2 5:1:3 5:1:4 5:16:1 5:16:2 5:16:3 5:16:4 5:32:1 5:32:2 5:32:3 5:32:4 5:48:1 5:48:2 5:48:3 5:48:4

Total.Gametophyte.No.

the total number of gametophytes in each population

No..of.Ameristic.Gametophytes

the number of ameristic (male) gametophytes in each gametophyte population

No..of.Meristic.Gametophytes

the number of meristic (female and hermaphrodite) gametophytes in each gametophyte population

Ameristic.Meristic.Ratio

the ratio of ameristic gametophytes to meristic gametophytes (sex ratio)

Pct..Ameristic.Gametophytes

the percentage of ameristic gametophytes per total gametophyte population

References

Goodnoe, T. T., Hill, J. P., Aho, K. (2016) Effects of variation in carbon, nitrogen and phosphorous molarity and stoichiometry on sex determination in the fern Ceratopteris richardii. Botany 94(4): 249-259.

Examples

data(SexDeterm)