Open AccessLos parientes silvestres del chile ( Capsicum spp.) como recursos genéticos
Author(s) -
Sergio Hernández-Verdugo,
Ramón Gerardo Guevara-González,
R. F. Rivera-Bustamante,
Carlos Vázquez-Yanes,
Ken Oyama
Publication year - 1998
Publication title -
botanical sciences/botanical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.289
H-Index - 17
eISSN - 2007-4476
pISSN - 2007-4298
DOI - 10.17129/botsci.1559
Subject(s) - humanities , art
Results of studies on variation of genetic, morphological, germination and resistance to PHV (pepper huasteco virus) geminivirus of wild populations of C. annuum collected in Sinaloa state are presented in order to show the importance of studing the wild relatives of cultivated plants. The study on resistance to PHV geminivirus with the biolistic method showed high variability between populations in this trait. Sorne populations showed low levels of disease symptoms, and they are very promising for further studies on virus resistance. The isozymes study showed that ali the populations maintain high genetic variability (heterozygosity ranged between 0.255 to 0.325). Ali the wild C. annuum populations showed high variability in ten of eleven morphological traits analyzed. Most of the germination tests showed a great variability in response among the populations studied. Ali the wild C. annuum populations did not germinate under dark conditions, suggesting the existence of seed dormancy. In conclusion, wild relatives of pepper maintain high levels of variability of genetic, morphological and germination capacity, and they have potentially useful genes; they are valuable genetic resources that we need to study and to preserve.