Pear

Morphological, pathological and molecular variability in Botryodiplodia theobromae (Botryosphaeriaceae) isolates associated with die-back and bark canker of pear trees in Punjab, India

M. D. Shah, Verma, K. S., Singh, K., and Kaur, R., Morphological, pathological and molecular variability in Botryodiplodia theobromae (Botryosphaeriaceae) isolates associated with die-back and bark canker of pear trees in Punjab, India, vol. 9, pp. 1217-1228, 2010.

Thirteen isolates of Botryodiplodia theobromae collected from pear varieties grown in various regions of Punjab were studied for morphological, pathological and molecular characterization. The mycelial growth of B. theobromae isolates was classified as fluffy or depressed, uniform to irregular and cottony white turning to black. Colony growth rate varied from 19.1 to 24.9 mm per day. Pycnidia were produced either on the edge, centered or scattered on Petri dishes after 20 to 34 days of incubation.

Development of a novel and efficient strategy for practical identification of Pyrus spp (Rosaceae) cultivars using RAPD fingerprints

J. Lin, Wang, X. C., Chang, Y. H., and Fang, J. G., Development of a novel and efficient strategy for practical identification of Pyrus spp (Rosaceae) cultivars using RAPD fingerprints, vol. 10, pp. 932-942, 2011.

Accurate and reliable cultivar identification of crop species is essential to guarantee plant material identity for purposes of registration, cultivar protection and production. To facilitate identification of plant cultivars, we developed a novel strategy for efficient recording of DNA molecular fingerprints in genotyped plant individuals. These fingerprints can be used as efficient referential information for quick plant identification. We made a random amplified polymorphic DNA (RAPD) marker analysis of 68 pear cultivars.

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