000 02456nam a2200241Ia 4500
003 MX-MdCICY
005 20250625153933.0
040 _cCICY
090 _aB-14029
245 1 0 _aAllelic Variation in a Putative Gene Related to Pungency in Pepper (Capsicum spp.)
490 0 _vActa Hort., 929, p.169-174, 2012
520 3 _aThe compounds called capsaicinoids, responsible for pungency in peppers (Capsicum spp.), exhibit a wide genetic and environmental control variation. Pungency in pepper is an interesting quality trait that requires more knowledge about its genetic control. Up to now, not all the genes involved in the capsaicinoid biosynthetic pathway have been characterized. From previous work, a partial DNA sequence, possibly related to pungency, was identified and using the genome walking technique, a complete DNA sequence was obtained from C. annuum 'Yolo Wonder'. The aim of this work was to study this DNA sequence in several pepper genotypes. The putative gene was sequenced in six genotypes from different species: three model genotypes, one non-pungent C. annuum 'Yolo Wonder' and two pungent, C. annuum 'SCM-334' and C. chinense 'Habanero'; and other three pungent genotypes, selected by their characteristics concerning to pungency trait, C. chinense 'C-158', C. frutescens 'C-126', and C. baccatum 'C-235'. For this purpose, several pairs of primers were designed along the above sequence and they were used to obtain the target DNA sequence. These results showed variability. Among the observed differences, a deletion was found only in the non-pungent genotype, and this result was confirmed when more non-pungent genotypes were studied. Also, several Single Nucleotide Polymorphisms, either genotype-specific or pungent-specific were found. Finally, differences along the upstream DNA sequence region in C. baccatum 'C-235' were observed. The detected allelic variation might be further investigated, to better understand its effect at the phenotypic level of the pungency trait.
650 1 4 _aALLELE
650 1 4 _aCAPSICUM
650 1 4 _aPOLYMORPHISM
650 1 4 _aPUNGENCY
700 1 2 _aRodríguez-Maza, M.J.
700 1 2 _aGarcés-Claver, A.
700 1 2 _aArnedo-Andrés, M.S.
856 4 0 _uhttps://drive.google.com/file/d/1SBajhEaOh8Tq2na-lkrw8gVuwER75M0N/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 _2Loc
_cREF1
008 250602s9999 xx |||||s2 |||| ||und|d
999 _c48224
_d48224