Abstract
Information about genetic dissimilarity is very important to corroborate genealogical relationships and to predict the most heterozygotic hybrid combinations. Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers. Of a total of 51 evaluated polymorphic primers, 15 were used for polymerase chain reaction (PCR) amplification. The genetic distance was estimated by Rogers' modified distance. The different popcorn breeding programs in Brazil are possibly using highly similar base-populations. The genetic similarity of lines P1-3 and P8-1 was lowest, while P3-3 and P8-2 were genetically more similar. The cophenetic correlation showed that the Unweighted Pair-Group Method Using Arithmetic Averages (UPGMA) was reliable to discriminate the genotypes in five groups. The clusters were consistent with the estimates of genetic identity. There was a moderate coincidence degree between the groups and genealogy of lines. Higher levels of heterozygosity are expected from crosses between the group containing lines P3-3 and P7-3 with that of P1-3 and P7-4. Crosses between lines P1-3 and P8-1 are also promising.
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Claims 8
Claim · model-written summary
Genetic similarity was lowest between popcorn lines P1-3 and P8-1.
Verbatim
e0“Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers”
e1“The genetic similarity of lines P1-3 and P8-1 was lowest”
Claim · model-written summary
Popcorn lines P3-3 and P8-2 were genetically more similar.
Verbatim
e0“Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers”
e2“while P3-3 and P8-2 were genetically more similar”
Claim · model-written summary
UPGMA was reliable for discriminating the popcorn genotypes into five groups.
Verbatim
e0“Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers”
e3“The cophenetic correlation showed that the Unweighted Pair-Group Method Using Arithmetic Averages (UPGMA) was reliable to discriminate the genotypes in five groups”
Claim · model-written summary
The groups and the genealogy of popcorn lines showed a moderate coincidence.
Verbatim
e0“Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers”
e4“There was a moderate coincidence degree between the groups and genealogy of lines”
Claim · model-written summary
The clusters were consistent with the estimates of genetic identity.
Verbatim
e0“Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers”
e5“The clusters were consistent with the estimates of genetic identity”
Claim · model-written summary
Higher heterozygosity is expected from crosses between lines P3-3 and P7-3 and lines P1-3 and P7-4.
Verbatim
e0“Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers”
e6“Higher levels of heterozygosity are expected from crosses between the group containing lines P3-3 and P7-3 with that of P1-3 and P7-4”
Claim · model-written summary
Crosses between lines P1-3 and P8-1 are promising.
Verbatim
e0“Eight popcorn S6 lines of diverse germplasm types were evaluated using simple sequence repeats (SSR) markers”
e7“Crosses between lines P1-3 and P8-1 are also promising”
Claim · model-written summary
Popcorn breeding programmes in Brazil possibly use highly similar base-populations.
Verbatim
e1“The different popcorn breeding programs in Brazil are possibly using highly similar base-populations”