0	0.12109	pollen cells meiotic species cell plants plant observed 
1	0.06031	genes oil avicennia analysis using essential infection gene 
2	0.16599	chromosome species chromosomes karyotype length genus analysis numbers 
3	0.12491	chromosome species chromosomes fish karyotype cytogenetic chromosomal rdna 
4	0.1019	dna genome size species plant analysis nuclear flow 
5	0.10328	cells extracts cepa extract allium test root effects 
6	0.17441	genetic species diversity populations markers molecular analysis among 
7	0.19824	plant stress plants effects cell control growth root