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Question

Sonari variety of sheep mostly found in which of the following districts of Rajasthan?

The correct answer is Udaipur, Dungarpur, Bhilwara

Sonari Sheep Distribution in Rajasthan

The Sonari variety of sheep is one of the important indigenous sheep breeds found in India, particularly prominent in the state of Rajasthan. These sheep are well-known for their unique physical characteristics and their economic value, primarily for mutton and sometimes for wool production.

Sonari Sheep: Key Characteristics

  • Appearance: Sonari sheep are easily identifiable by their long, flat, pendulous ears that often touch the ground, resembling a long, flowing scarf, hence their name "Sonari" which means "golden" or "beautiful" (referring to their ears or overall look).
  • Size: They are medium to large-sized sheep.
  • Color: Their body is typically white, with a light brown or tan face and ears.
  • Purpose: Primarily raised for mutton production due to their good body weight and growth rate. They also produce coarse wool, though it's not their main purpose.
  • Adaptation: They are well-adapted to the hot and semi-arid conditions of their native regions in Rajasthan.

Districts Where Sonari Sheep Are Mostly Found

The Sonari variety of sheep is predominantly found in the southern and south-eastern parts of Rajasthan. The districts that form their major habitat are:

  • Udaipur: A significant population of Sonari sheep is found in the Udaipur district, known for its hilly terrain and varied vegetation.
  • Dungarpur: Located south of Udaipur, Dungarpur also hosts a large number of Sonari sheep, benefiting from similar geographical and climatic conditions.
  • Bhilwara: East of Udaipur, Bhilwara district is another key area where Sonari sheep are extensively reared by local farmers and livestock breeders.
  • Other surrounding districts, though to a lesser extent, might also have populations of Sonari sheep.
Sheep Variety Major Districts of Rajasthan Key Characteristics/Purpose
Sonari Udaipur, Dungarpur, Bhilwara Long pendulous ears, good for mutton.
Marwari Jodhpur, Pali, Nagaur, Jaisalmer Black face, hardy, good for wool and meat.
Pugal Bikaner, Jaisalmer, Nagaur Compact body, good for wool.
Chokla (Magra) Churu, Sikar, Nagaur, Bikaner Finest carpet wool quality in India.

Analysis of Options

Let's examine the given options based on the known distribution of Sonari sheep in Rajasthan:

  • Option 1: Jaisalmer, Bharatpur, Barmer
    • Jaisalmer and Barmer are primarily associated with breeds like Marwari and Malpura sheep, which are adapted to the western desert regions.
    • Bharatpur is in eastern Rajasthan and is not a primary breeding ground for Sonari sheep.
  • Option 2: Udaipur, Dungarpur, Bhilwara
    • As discussed, these three districts in southern and south-eastern Rajasthan are well-known as the primary regions where the Sonari variety of sheep is extensively found and reared.
  • Option 3: Jaipur, Jodhpur, Tonk
    • Jodhpur is associated with Marwari sheep.
    • Jaipur and Tonk are known for breeds like Malpura sheep. These districts are not the primary habitat for Sonari sheep.
  • Option 4: Ganganagar, Bikaner, Jaisalmer
    • Ganganagar and Bikaner are home to sheep breeds like Nali and Pugal, adapted to the northern and north-western regions.
    • Jaisalmer, as mentioned, has Marwari sheep.

Therefore, the districts of Udaipur, Dungarpur, and Bhilwara align perfectly with the known distribution range of the Sonari variety of sheep in Rajasthan.

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Important Questions from Breeding

  1. Which of the following is an indigenous dairy breed of cattle?

  2. Given below are a few statements on use of plant breeding to develop improved varieties of a crop plant:

    A: Genotypic/phenotypic variation in the desired trait should be available in the germplasm resources of the crop plant.

    B: Availability of molecular markers linked to the trait of interest would decelerate the process of trait introgression into desired varieties.

    C: Breeding procedures to improve plant varieties are generally more successful among sexually compatible species as compared to sexually incompatible species.

    D: Co-dominant molecular markers cannot be used for selection of plants with the desired trait.

    Which of the above statement(s) is/are INCORRECT?

  3. Given below are some terms in column A and their corresponding properties/related terms in column B

    Column XColumn X
    ABulk segregant
    analysis
    (i)QTL analysis of wider genetic diversity using fewer individuals
    BNILS(ii)Mapping monogenic qualitative trails
    CAssociation mapping(iii)Co-dominant markers
    D SNPs(iv)Repeated backcrossing of F1 to recurrent parent
    Which one of the following options represents the most appropriate match between all terms of column A and B?
  4. Which one of the following approaches/markers would be typically used for discovering polymorphism between two closely related accessions of a crop plant?

  5. A group of researchers are testing two new agents, M1 and M2 for their efficacy in selecting transgenic plants. When they performed tissue culture experiments using three explants, A, B, and C without Agrobacterium transformation, and selected the regenerated plants on M1 and M2, the following regeneration frequencies were obtained.

    Regeneration frequencies (%) in presence of different concentration of agents
    Explant typeM1 conc. (mg/L)M2 conc. (mg/L)
    2060100101520
    A44%21%Nil8%NilNil
    B53%30%10%NilNilNil
    C71%42%18%15%9%4%

    Based on the above data, which one of the following conclusions is INCORRECT?

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