( ( In contrast ) ( , ( rice ( ( plastid ( DNA ( contains ( ( a ( ( severely truncated ) pseudogene ) ) ( at ( this locus ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NN contrast))) (, ,) (NP (NN rice)) (VP (VBD plastid) (SBAR (S (NP (NNP DNA)) (VP (VBZ contains) (NP (NP (DT a) (ADJP (RB severely) (JJ truncated)) (NN pseudogene)) (PP (IN at) (NP (DT this) (NNS locus)))))))) (. .)))
In contrast, rice plastid DNA contains a severely truncated pseudogene at this locus.
(ROOT (S (PP (IN Like) (NP (NN mitochondria))) (, ,) (NP (NNS plastids)) (VP (VBP contain) (NP (PRP$ their) (JJ own) (NN dna))) (. .)))