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Comparative Leaf Anatomical Studies Reveal Photosynthetic Pathways type in Guinea Grass (Panicum maximum Jacq.) Accessions and their Interspecific Lineage


Affiliations
1 ICAR-Indian Grassland and Fodder Research Institute, Jhansi 284 003, India
2 ICAR-National Institute of Biotic Stress Management, Baronda, Raipur 493 225, India
 

Kranz anatomy studied among Panicum maximum ac-cessions showed wide variation for chloroplast in bundle sheath (BS), mesophyll and mestome. Geno-types in clusters E and F, with <20% pigmentation in BS, had lineage with P. prionitis, P. rivulare, P. laxum, P. hylacicum and P. bisulcatum, whereas genotypes in clusters B, C and D with high pigmentation were C4 types having lineage with P. antidotale, P. coloratum and P. miliaceum. Genotypes with ~50% pigmentation in cluster A were intermediate types and might have evolved either through intraspecies crossing or species like P. milioides, P. decipens, P. schenckii and P. petersoni.

Keywords

C3–C4 Photosynthesis, Germplasm, Guinea Grass, Interspecific Lineage, Leaf Anatomy.
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  • Comparative Leaf Anatomical Studies Reveal Photosynthetic Pathways type in Guinea Grass (Panicum maximum Jacq.) Accessions and their Interspecific Lineage

Abstract Views: 360  |  PDF Views: 105

Authors

Devendra Ram Malaviya
ICAR-Indian Grassland and Fodder Research Institute, Jhansi 284 003, India
Ajoy Kumar Roy
ICAR-Indian Grassland and Fodder Research Institute, Jhansi 284 003, India
Pankaj Kaushal
ICAR-National Institute of Biotic Stress Management, Baronda, Raipur 493 225, India

Abstract


Kranz anatomy studied among Panicum maximum ac-cessions showed wide variation for chloroplast in bundle sheath (BS), mesophyll and mestome. Geno-types in clusters E and F, with <20% pigmentation in BS, had lineage with P. prionitis, P. rivulare, P. laxum, P. hylacicum and P. bisulcatum, whereas genotypes in clusters B, C and D with high pigmentation were C4 types having lineage with P. antidotale, P. coloratum and P. miliaceum. Genotypes with ~50% pigmentation in cluster A were intermediate types and might have evolved either through intraspecies crossing or species like P. milioides, P. decipens, P. schenckii and P. petersoni.

Keywords


C3–C4 Photosynthesis, Germplasm, Guinea Grass, Interspecific Lineage, Leaf Anatomy.



DOI: https://doi.org/10.18520/cs%2Fv119%2Fi5%2F808-816