Research Article

On the Relationship between Pollen Size and Genome Size

Table 3

Examples of previous studies on the relationship between ploidy and pollen size reported by family, genus, ploidy variation and how doubling DNA content changed pollen volumne. Primary literature sources are also given.

FamilyGenusSpecies and chromosome numbers2x the DNA led to:Source

BoraginaceaeLappula deflexa ( ) & squarrosa ( )1.5x to 2x larger pollen[20]
Convolvulaceae Cuscutaepithymum ( ) & carapestris ( )1.2x larger pollen[22]
PapaveraceaeFumariamurialis ( ) & capreolata ( )1.3x larger pollen[21]
PoaceaeAndropogonvarious species ( , and )1.2x larger pollen[14]
PolygonaceaeRumexacetosella ( and )1.1x to 1.3x larger pollen[23]
Convolvulaceae Ipomoeatrifida with diploid pollen1.3x larger pollen[15]
BrassicaceaeArabidopsisthaliana with diploid and tetraploid pollen1.7x larger pollen[17]