( Comparative ( evolution ( of ( genome ( ( size and ) structure ) ) ) ) )
(ROOT (S (VP (VB Comparative) (NP (NP (NN evolution)) (PP (IN of) (NP (JJ genome) (NN size) (CC and) (NN structure)))))))
Comparative evolution of genome size and structure
(ROOT (S (NP (VBG Comparing) (NN genome) (NNS sequences)) (VP (VBZ provides) (NP (NNS clues)) (PP (TO to) (NP (NN evolution) (CC and) (NN development)))) (. .)))