468 PB 333 RAPDS ANALYSIS OF GENETIC DISTANCE BETWEEN WILD AND CULTIVATED TEPARY BEAN LINES

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  • 1 Department of Agronomy and Horticulture, 275 WIDB, Brigham Young University, Provo, UT 84602

Tepary beans (Phaseolus acutifolius A. Gray) are considered drought and heat tolerant, desirable characteristics for arid regions. Knowing the genetic distances among tepary lines can indicate both compatibility for intraspecific crosses and potential for Interspecific P. acutifolius × P. vulgaris hybrids. Fifteen tepary lines, including cultivars and landraces, were compared to two pinto bean varieties using random amplified polymorphic DNA's (RAPDs). At the present time polymorphisms have been clearly identified between wild and cultivated teparies and the pinto bean. An ammo acid profile is also being determined using HPLC. More work needs to be completed before relationships among cultivated teparies can be established.

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