First resistance (R) gene cloned and sequenced in 1992 from... | Agrigyan

Q.11

RPSC ARO 2014 MCQ (Single Correct) +1 −0.33

First resistance (R) gene cloned and sequenced in 1992 from maize is :--

मक्का से 1992 में क्लोन और अनुक्रमित किया गया प्रथम पादप प्रतिरोध जीन कौन सा है :--

Hm - 1 Hm - 1 Cf - 9 Cf - 9 Pt - 0 Pt - 0 Xa - 21 Xa - 21

The Hm1 gene of Zea mays was the first plant disease resistance (R) gene successfully cloned and sequenced by Johal and Briggs in 1992, which encodes NADPH-dependent HC-toxin reductase that detoxifies HC-toxin produced by Cochliobolus carbonum race 1.
Cf-9 is a tomato resistance gene conferring resistance to Cladosporium fulvum, cloned later in 1994 by Jones et al.
Pto from tomato encodes a serine/threonine protein kinase conferring resistance against Pseudomonas syringae pv. tomato, cloned in 1993.
Xa-21 is a receptor kinase gene from wild rice conferring resistance to Xanthomonas oryzae, cloned in 1995 by Ronald et al.

Hence, the correct answer is Hm - 1 (Option 1).

पौधों में क्लोन और अनुक्रमित किया जाने वाला सबसे पहला पादप रोग प्रतिरोध (R) जीन मक्का का 'Hm-1' जीन था, जिसे 1992 में जोहल और ब्रिग्स द्वारा अलग किया गया था।
यह जीन एचसी-टॉक्सिन रिडक्टेस एंजाइम बनाता है जो कोकलियोबोलस कार्बोनम के टॉक्सिन को निष्क्रिय करता है।
सीएफ-9 और पीटीओ टमाटर से बाद में (1993-1994) क्लोन किए गए।
Xa-21 धान का जीवाणु अंगमारी प्रतिरोधी जीन है जिसे 1995 में क्लोन किया गया।

अतः सही उत्तर Hm - 1 है (विकल्प 1)।

Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report

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