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'''''Bombyx mandarina''''', the '''WildBướm Silkmothtằm hoang''', islà anmột insect from theloài [[mothbướm đêm]] [[familythuộc (biology)|family]]họ [[Bombycidae]]. ItNó iscó themối closestquan relativehệ ofgần gũi với loài đã được thuần hóa là ''[[Bombyx mori]]'' the Domesticated Silkmoth or "silkworm" (properly,tằm thistơ). refersLoài tothần thehóa [[caterpillar]]skhông only).biết Unlikebay thevà domesticatedcần relativesự whichchăm issóc unablecủa tocon flyngười, orcòn indeedloài persistnày outsidevẫn humanmang care, thecác Wildđặc Silkmothđiểm isnguyên athủy fairlycủa ordinarybộ [[lepidoptera]]n. ItsĐiểm mainkhác differencebiệt fromchính thevề domesticatedphân [[taxon]]loại isvới theloài morethần slenderhóa bodylà withchúng well-developedcó wingscơ inthể males,mảnh dẻ hơn với đôi cánh phát triển đầy đủ ở con đực andvà thecó dullmàu greyishnâu-brownxám colortối.
 
==Phylogeny and systematics==
Together, the two species constitute the [[genus]] ''Bombyx'', the true or mulberry silkmoths. The origin of the Domesticated Silkmoth is enigmatic. It has been suggested that it is the survivor of an extinct [[species]] which diverged from the ancestors of ''Bombyx mandarina'' millions of years ago{{Citation needed|date=July 2007}}. However, this is based on an untenable [[molecular clock]] hypothesis that assumes that wild and domestic silkmoths [[evolution|evolve]]d equally fast after their lineages diverged. Rather, the effects of [[artificial selection]] have accelerated evolution in the domestic form to a point where it is hard to trace the origin of the numerous breeds of domestic silkworms even with the most modern [[molecular phylogeny]] methods. (Yukuhiro ''et al.'' 2002)
 
It is not inconceivable that today's domestic silkworms are all descended from an initial stock of ''B. mandarina'' collected as late as 5000 years ago (Yoshitake 1968). While [[wild silk]] could have been collected and used as threads etc., since much earlier, the technology to breed and utilize silkworms from a domesticated stock did not exist before the late [[Neolithic]].
 
However, it has been possible to trace the geographical origin of the domestic silkmoth. The wild species occurs over a considerable range from inland [[China]] to [[Korea]] and [[Japan]], and shows much (albeit subtle) variation. The populations from the northeastern end of the range, for example, differ in [[karyotype]] from those of inland China. Domestic silkmoths are closer to the latter regarding [[mtDNA]] sequence data, and especially lack some genetic [[apomorph]]ies of the northeastern ''B. mandarina''. Thus, it has been concluded that the initial domestic stock came from China. (Yukuhiro ''et al.'' 2002, Arunkumar ''et al.'' 2006)
 
''Bombyx mandarina'' is able to [[Hybrid (biology)|hybridize]] with ''B. mori''. Both in the wild and in a domesticated environment, females release [[pheromone]]s and wait for males to be attracted and fly to them. However, ''B. mori'' males cannot fly. Hybridisation therefore inevitably means breeding between domestic (''B. mori'') females and wild (''B. mandarina'') males.
 
Consequently, the two silkmoths have been united as [[subspecies]] of a single species; in this case the name ''Bombyx mori'' which was published first applies for both. However, today it is usually recognized that the Domestic Silkmoth is entirely dependent on human care for its survival and thus has a level of [[reproductive isolation]] from its wild relatives.
 
==References==
Lấy từ “https://vi.wikipedia.org/wiki/Bombyx_mandarina”