Identification of pre-fertilization reproductive barriers and the underlying cytological mechanism in crosses among three petal-types of Jasminum sambac and their relevance to phylogenetic relationships
Fig 2
Pollen in vitro culture of three jasmine petal-types at different developmental stages.
(a) Germination of the double-petal (DP) jasmine pollen grains in Stage 1 (i.e., one day before flowers partially opened). (b) Germination of the single-petal (SP) jasmine pollen grains in Stage 4 (i.e., one day post flowers fully opened). (c) Germination of the DP jasmine pollen grains in Stage 4. (d) Germination of the multi-petal (MP) jasmine pollen grains in Stage 4.