Molecular Characterization of Closely Related Open Pollinated Seedling Selections in Guava

Saxena, S. K.; Rajan, Shailendra; Chandra, R.; Srivastava, Neha; Bajpai, Anju

doi:10.17660/actahortic.2007.735.4

Cited by 8 publications

(4 citation statements)

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“…RFLP, DNA sequencing, and a number of PCR-based markers are being used extensively for reconstructing phylogenic relationships of various species (Callow et al, 1997). Saxena et al (2007) used PCR-based random amplified polymorphic DNA (RAPD) and direct amplification of minisatellite DNA (DAMD) markers to study the genetic diversity and relatedness among 22 guava accessions comprising commercial cultivars, breeding lines, and unimproved cultivars. The cultivars were analyzed using 23 arbitrary sequence decamer primers for DAMD reactions.…”

Section: Discussionmentioning

confidence: 99%

Molecular Characterization of Jamun (Syzygium cuminiL. Skeels) Genetic Resources

Shakya

Siddiqui

Srivatawa

et al. 2010

International Journal of Fruit Science

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Jambul (Syzygium cumini) is an evergreen tropical tree in the flowering plant family Myrtaceae, and is native to Bangladesh, India, Nepal, Pakistan, and Indonesia. Systematic breeding and propagation has not been done in this crop until now. The variation observed may result from seed propagation with the J-22 selection being the most dissimilar from other accessions in that it is unique in being seedless. At the same time J-36 was found to occupy a separate cluster from the other two. In the present study, good differentiation and diverse genetic bases of Indian accessions has been demonstrated. The dendogram analysis shows clearly grouped accessions by different geographical regions. Plant improvement, either by natural selection or through the effort of breeders has always relied upon creating, evaluating, and selecting the right combination of alleles. The manipulation of a large number of genes is often required for improvement of even the simplest of characteristics. In the present study, OPZ9 and OPA12 primers detected a small difference between these selections.

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Section: Discussionmentioning

confidence: 99%

Molecular Characterization of Jamun (Syzygium cuminiL. Skeels) Genetic Resources

Shakya

Siddiqui

Srivatawa

et al. 2010

International Journal of Fruit Science

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“…Somatic embryogenesis in guava has been improved and reported by several groups (Chandra et al, 2004;Rai et al, 2007;2008;Saxena et al, 2007;Singh et al, 2007). Several problems have been encountered during the optimisation of a high-efficiency micropropagation protocol involving the induction of somatic embryogenesis from zygotic embryo explants of various cultivars of guava.…”

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confidence: 98%

“…Many reports on somatic embryogenesis in guava (Chandra et al, 2004;Rai et al, 2007;Saxena et al, 2007;Singh et al, 2007) and in other species have shown the production of globular somatic embryos; but the production of a globular structure does not necessarily mean the induction of somatic embryogenesis. There should be at least one moreadvanced stage beyond the globular somatic embryo in order to regard the process as somatic embryogenesis.…”

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confidence: 99%

“…There should be at least one moreadvanced stage beyond the globular somatic embryo in order to regard the process as somatic embryogenesis. Furthermore, the embryogenic potential of various factors have been evaluated simply by calculating the percentage of explants that show pro-embryogenic masses (PEMs), or directly as the number of globular somatic embryos per explant (Chandra et al, 2004;Jain et al, 2000;Rai et al, 2007;Saxena et al, 2007;Singh et al, 2007). However, it is difficult to compare the potential of various treatments based only on these two parameters.…”

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