Genetic diversity in Capsicum annuum L. (Solanaceae) based on SDS-PAGE of seed proteins

Date

3-1994

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Liwayway M. Engle

Abstract

A total of 208 accessions of Capsicum annuum from 46 different countries were analyzed, and their genetic diversity measured based on SDS-PAGE of their seed proteins. Seven protein bands with molecular weight ranging from 19,300 to 44,000 daltons and ten different banding patterns were observed. Frequency of the banding patterns differed. Three bands were monomorphic. Accessions from Central America were the most diverse in terms of band patterns and occurrence of specific bands. Lowest similarity index value was also observed among these accessions. Based on the frequency of the banding patterns and specific bands, the center for diversity in seed proteins is Central America. Secondary centers were detected in Europe, Southeast Asia and Africa. Accessions with inserted stigma showed the highest similarity followed by those with same level stigma and then by those with exerted stigma indicating that breeding structure influences diversity in seed proteins. Majority of the variants of the same accession exhibited the same banding pattern.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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