Plant Genetic Resources- ICAR JRF/SRF 2024

• Taxonomic Classification of Citrus Species and Landraces:
• Malayan Papeda: Botanically designated as Citrus macroptera Montrouz. (indigenous to South-East Asia and NE India) $\rightarrow$ (I)
• Rangpur Lime: Botanically designated as Citrus limonia Osbeck (acidic rootstock tolerant to tristeza virus) $\rightarrow$ (III)
• Khasi Mandarin: Prized loose-skinned commercial mandarin belonging to Citrus reticulata Blanco $\rightarrow$ (IV)
• Khasi Papeda: Cold-tolerant wild papeda of Meghalaya designated as Citrus latipes (Swingle) Tanaka $\rightarrow$ (II)
• Systematic Match: (A)-(I), (B)-(III), (C)-(IV), (D)-(II) corresponds to Option 3.

Correct option: (3) Ad, Bulll, C-lV, D-ll

• Biosphere Reserves and Phytogenetic Conservation Hotspots in India:
• Nokrek Biosphere Reserve (Garo Hills, Meghalaya): Houses the National Citrus Gene Sanctuary protecting endangered wild Indian orange (Citrus indica) $\rightarrow$ (II)
• Amarkantak Biosphere Reserve (Achanakmar-Amarkantak, MP/CG): Renowned center of origin and diversity for underutilized minor forest fruits and wild legumes $\rightarrow$ (I)
• Agasthyamalai Biosphere Reserve (Western Ghats): Recognized for extraordinary endemism in medicinal plants (Kanikkar tribal ethnobotanical repository) $\rightarrow$ (IV)
• Nanda Devi Biosphere Reserve (Uttarakhand): Encompasses the Valley of Flowers featuring high-altitude endemic alpine flowering flora $\rightarrow$ (III)
• Systematic Match: (A)-(II), (B)-(I), (C)-(IV), (D)-(III) corresponds to Option 1.

Correct option: (1) Adl, B-l, C-AY, D-Ill

• Undifferentiated Perianth and Floral Morphology:
• In ancestral or petaloid monocotyledonous and primitive dicotyledonous angiosperm flowers where calyx (sepals) and corolla (petals) are morphologically indistinguishable in form, color, and texture, individual perianth segments are termed Tepals (forming a perigonium).
• Classic examples displaying prominent multiseriate tepals include water lilies (Nymphaea spp.), magnolias, and liliaceous geophytes.
• Conclusion: Tepals and Nymphaea (Option 3).

Correct option: (3) Tepals and Nymphaea