Table 2.
Boechera accessions, including ovule and anther stage-specific developmental characteristics
| Speciesa | ID | Collection locality | Reproductionb | Ovule-anther stagec | Ovule developmentd | Anther stageg | Anther developmentg |
|---|---|---|---|---|---|---|---|
| B. stricta | MT49 | Sagebrush Meadow, MT | Sex | a | Nucellus | 7-8 | Premeiotic PMC |
| b | MMCe formation | 9-10 | Meiotic PMCf | ||||
| c | Tetrad to degeneration | 11 | Microspore formation | ||||
| d | Fertilised ovules | ||||||
| B.divaricarpa | MT15 | Vipond Park, MT | Apomixis | a | Nucellus | 7-8 | Premeiotic PMC |
| b | MMCe formation | 9-10 | Meiotic PMC | ||||
| c | Tetrad to degeneration | 11 | Microspore formation | ||||
| d | Fertilized ovules |
a Species identification were based upon silique orientation, trichome morphology, and cpDNA sequences [40]
b Reproductive mode was confirmed using the flow cytometric seed screen [8,41]
c See Figures 1 and 2 for images of each stage.
d According to Schneitz et al [38]
e MMC: Megaspore mother cell
f PMC: Pollen mother cell stage
g According to Armstrong et al.[29]